JP4337515B2 - Performance instruction device and program - Google Patents

Description

  The present invention relates to a performance instruction system capable of displaying guidance corresponding to a displayed keyboard when a keyboard is displayed on a screen and a performance instruction is given according to performance information.

  2. Description of the Related Art Conventionally, there is an apparatus that displays a keyboard on a screen and sequentially changes a display mode of keys to be pressed to give a user a performance instruction. In such a conventional method, if the display screen does not have a size capable of displaying the entire key range of the keyboard at a time, it is not possible to give a performance instruction for a pitch corresponding to a key that is not displayed.

Further, for example, Japanese Patent Laid-Open No. 2004-228561 proposes that a part of the keyboard displayed on the screen is enlarged and the keyboard is scrolled in the horizontal direction according to the pitch of the performance information. When the keyboard is scrolled in this way, it is possible to instruct performance of each pitch, but there is an inconvenience that it becomes difficult to see if the keyboard displayed during performance continues to scroll left and right.
JP-A-9-305171 (paragraph [0090])

  In view of such inconvenience, the present invention displays only a part of the keyboard mounted on the apparatus by performing guidance display corresponding to the keyboard displayed with a predetermined key range size on the screen according to the performance information. An object of the present invention is to provide a performance instruction system that can perform an effective display corresponding to a performance instruction even when it cannot be performed.

  According to the main feature of the present invention, performance information acquisition means (S5) for sequentially acquiring performance information and keyboard display means (10) for displaying a keyboard (DK) with a predetermined key range size (RK) on the screen (SC). S2 and S11), and when there is a key corresponding to the pitch of the acquired performance information in the displayed keyboard (DK) (YES in S6), key display changing means for changing the display mode of the key (GL; S7, S11) and if there is no key corresponding to the pitch of the acquired performance information in the displayed keyboard (DK) (S6, NO), out of the key range of the displayed keyboard (DK) A non-key range notification means (SBa, SBb; S8) for notifying that the key is present, and a key range switching instruction means (SBa, SBb; S9) for instructing key range switching according to a user operation, Out-of-key notification means (SBa, SBb; S8) When the key range switching is instructed in the state where the notification is made (S9, YES → S10, YES), the keyboard display means (10; S2, S11) displays the key of the keyboard (DK) displayed on the screen. The range is switched to a range including the key (for example, C2 to C4 → C4 to C6) (S11), and the key display changing means (GL; S7, S11) is in the keyboard (DK) in which the range is switched. (1) A performance instructing device (Claim 1) is provided which changes the display mode of the key. Note that the parentheses are added with reference symbols and the like of the corresponding embodiments for the convenience of understanding, and the same applies to the following.

Further, according to this feature, a performance information acquisition step (S5) for sequentially acquiring performance information and a keyboard display step (S2, S11) for displaying a keyboard (DK) with a predetermined key range size (RK) on the screen (SC). ), And if there is a key corresponding to the pitch of the acquired performance information in the displayed keyboard (DK) (YES in S6), a key display changing step (S7, S11) for changing the display mode of the key ), And there is no key corresponding to the pitch of the acquired performance information in the displayed keyboard (DK) (S6, NO), the key is outside the key range of the displayed keyboard (DK) And a key range switching instruction step (S9) for instructing key range switching in response to a user operation, and notification in the out-of-key range notification step (S8) is performed. Key range switching is Then (S9 · YES → S10 · YES), in the keyboard display step (S2, S11), the key range of the keyboard (DK) displayed on the screen is changed to a key range including the key (for example, C2 to C4). (→ C4 to C6) In the switching (S11) and key display changing step (S7, S11), the computer changes the display mode of the key in the keyboard (DK) whose key range has been switched (S11). A performance instruction program (claim 2) is provided.

  The performance instruction system according to the present invention corresponds to a keyboard (DK) having a predetermined key range size (RK) displayed on the screen (SC) in accordance with performance information sequentially obtained from the performance information sources (3, 4, 12). The displayed guidance is displayed. In other words, if there is a key corresponding to the pitch of the performance information within the key range of the display keyboard (DK) (S6, YES), the display mode of the key is changed by the key display changing means (GL) (S7, S11), otherwise (S6, NO), the outside key range notifying means (SBa, SBb) notifies that the key corresponding to the pitch is outside the key range of the display keyboard (DK) (S8). .

  Further, in the state where the out-of-key notification is performed by the out-of-key notification means (SBa, SBb) (S10 / YES), the key range switching is instructed by the key range switching instruction means (SBa, SBb) according to the user operation. When this is done (S9, YES), the keyboard range of the display keyboard (DK) is switched to a key range including the key corresponding to the pitch (for example, C2 to C4 → C4 to C6), The key display changing means (GL) changes the display mode of the key in the display keyboard (DK) whose key range has been switched (S11).

  That is, according to the present invention, when the keyboard (DK) is displayed on the screen (SC) and a performance instruction is given in accordance with the performance information, the key corresponding to the pitch currently being played is displayed on the display keyboard (DK). While it is inside, the display mode of the key on the display keyboard (DK) is sequentially changed by the key display changing means (GL). At this time, on the screen (SC), the keyboard (DK) of a predetermined key range is displayed due to restrictions on visual recognition or restrictions due to the sharing of equipment, etc., and the entire key range of the keyboard mounted on the device is displayed. It may not be cut. In such a case, when the pitch corresponding to the corresponding key not displayed on the display keyboard (DK) is in the playing state, the corresponding key is displayed in the display key range (for example, by the out-of-key range notification means (SBa, SBb)). , C2 to C4) are informed that they are outside. Therefore, even when only a part of the key range of the mounted keyboard can be displayed on the screen, display corresponding to each performance instruction can be effectively performed.

  Further, according to the present invention, the user operation is performed in a state where the fact that the corresponding key is outside the key range (for example, C2 to C4) of the display keyboard (DK) is notified by the out-of-key notification means (SBa, SBb). Accordingly, when a key range switching instruction is made by the key range switching instruction means (SBa, SBb), the key range of the keyboard (DK) displayed on the screen (SC) is automatically switched accordingly. The display is changed to the keyboard (DK) of the key range (for example, C4 to C6) including the corresponding key (corresponding key range transition function). At this time, the display prompting the key range switching instruction operation disappears, and the display mode of the corresponding key is changed by the key display changing means (GL). Therefore, a stable display screen can be obtained at all times by the corresponding key range shifting function that automatically changes the key range of the display keyboard in accordance with the user operation. In addition, even when the user does not perform a key range switching instruction operation, it is possible to clearly notify the user whether or not the displayed key outside the key range should be pressed.

  Moreover, if two types (SBa, SBb) are prepared as out-of-key range notification means corresponding to whether the corresponding key is higher or lower than the key range of the display keyboard (DK), is the pitch higher than the display region? Whether the pitch is low can be clearly distinguished and notified. Further, regarding the forms of the operation unit of the out-of-key notification means and the key range switching instruction means, the out-of-key notification means may or may not have the corresponding key in the display key range, such as a lamp on the screen or the operation panel. Display means that change the display mode depending on the case can be used, and means that can be operated by the user, such as buttons on the screen or panel, can be used as the operation section of the key range switching instruction means. Alternatively, the functions of the out-of-key notification means and the instruction means operation unit are not divided into lamps and buttons in this way, but can be displayed by icons (SBa, SBb) on the display screen (SC) or switches with lamps on the panel. It is also possible to combine the display and operation functions of both means in one button that can be changed.

  In addition, when a key range switching instruction is given by the key range switching instruction means while the out-of-key notification means is being used, the keyboard of a new key range (corresponding key range) including the corresponding key The display may be shifted to the display instantly, but the scroll display method is used to display the keyboard as if it is moving to the low or high side for a short time, and then the keyboard display of the corresponding key range is reached. With this configuration, the user can sensuously sense the direction and distance of the key to be pressed. For example, icons (SBa, SBb) having an out-of-key notification and key range switching instruction function are displayed on the screen (SC) so as to be operable, prompting the user to perform a scroll instruction operation, and in response to a user operation on the operable icon Then, it is possible to take a method of making this icon inoperable after scrolling the display keyboard to a new key range after taking a very small amount of time so that it can be seen that it is moving.

  As in the example of this icon (SBa, SBb), when the corresponding key is out of the key range, the out-of-key range notification is performed and the key range switching instruction function is enabled, and when in the key range, the out-of-key range notification is not performed. The switching instruction function itself can also be invalidated, but it may be configured such that key range switching can be instructed by the key range switching instruction means even when notification outside the key range is not performed. . For example, when the corresponding key is in the key range, key range switching is instructed by operating the operation button or icon, and the display key range may be scrolled by an amount corresponding to the operation amount (number of operations or operation time) ( In accordance with this scrolling, the corresponding key may move and the corresponding key may not be displayed. However, when the next performance information is acquired, the corresponding key is displayed or out-of-key notification is performed). However, even in this case, when key range switching is instructed when the corresponding key is outside the key range, the key range including the corresponding key is always displayed by the corresponding key range transition function.

  The present invention can be applied not only to the practice mode in which the key to be pressed by the user is displayed in accordance with the performance information but also to the automatic performance mode that does not assume the user's key pressing operation. That is, in the automatic performance mode, the progress of performance information that is automatically performed can be visually observed by displaying performance instructions on the display screen. In the present invention, the “performance state” means a state in which the on-event of the performance information continues or a state for a certain period from the on-event, and means a state in which the key should be depressed in the practice mode. In the automatic performance mode, it means that the sound is being generated.

  In addition, the present invention relates to various electronic musical instruments in which keyboards having different key ranges are mounted, the key range size of the keyboard displayed on the display screen (the size of the key range, “key range width” or “number of keys”). This is particularly effective when sharing the same. For example, a display screen that can display all keys of a keyboard with a narrow key range such as “61 keys” is prepared in common, and a display screen with a small key range of the display keyboard is thus narrow. Not only an electronic musical instrument with a keyboard with a keyboard range, but also an electronic musical instrument with a keyboard with a wide keyboard range such as “76 keys” and “88 keys” can be used. In this case, even a 76-key or 88-key electronic musical instrument can display only 61 keys at a time on the display screen, but the characteristic configuration of the present invention allows performance instructions to be performed without hindrance. Can do. In addition, the development efficiency and maintenance efficiency of keyboard display can be improved for similar products of a plurality of models with different keyboard key ranges.

〔System configuration〕
FIG. 1 shows a hardware configuration example of a performance instruction system according to an embodiment of the present invention. In this example, an electronic musical instrument is used for the music information processing apparatus in which the performance instruction system is constructed. However, the information processing apparatus is not a dedicated information processing apparatus for music such as an electronic musical instrument, but may be a general-purpose information processing apparatus such as a personal computer. You may use what provided the performance input and the musical sound production | generation function. This music information processing apparatus includes a central processing unit (CPU) 1, a random access memory (RAM) 2, a read only memory (ROM) 3, an external storage device 4, an input operation unit 5, a display unit 6, a sound source unit 7, a communication Elements such as an interface (communication I / F) 8 are provided.

  The CPU 1 that controls the entire apparatus executes various processes according to various control programs including a performance instruction program. The RAM 2 functions as a processing buffer for temporarily storing various types of information used in these processes. For example, when executing a performance instruction process according to a performance instruction program, the display keyboard (DK) is displayed. The range (key range) information, the lighting state of the shift buttons (SBa, SBb), and the like are stored. The ROM 3 stores various data such as various control programs, necessary control data, and performance data.

  The external storage device 4 is a hard disk (HD), a compact disk read only memory (CD-ROM), a flexible disk (FD), a magneto-optical (MO) disk, a digital multipurpose disk (DVD), a memory card, etc. Storage means using a storage medium. Various programs and data such as a performance instruction program and performance data can be stored not only in the ROM 3 but also in the external storage device 4.

  For example, if a control program such as a performance instruction program is not stored in the ROM 3, the control program is stored in the external storage device 4 such as an HD or a CD-ROM and is read into the RAM 2. The CPU 1 can be operated in the same manner as when it is stored, and the control program can be easily added or upgraded. Moreover, a desired performance instruction apparatus can be realized by installing a program used for performance instruction processing, necessary control data, and the like.

  The input operation unit 5 includes an operation unit including a performance operator such as a keyboard and a panel operation unit for instructing start and stop of various settings and performance instruction processing, and a user who uses these operators. The operation detection circuit detects the contents of the performance operation and panel operation, and introduces the corresponding input information into the system body.

  The display unit 6 controls display contents of a display (display such as a CRT or LCD) 10 connected thereto and lighting states of various indicators according to instructions from the CPU 1, and performs display assistance for the operation of the input operation unit 5. . In particular, when the performance instruction process is executed, a guide lamp (GL) corresponding to each key on the keyboard (DK) displayed on the display 10 is turned on to change the key display mode, or the shift button ( SBa, SBb) can be lit to notify the user that the corresponding key range transition function by the user operation is enabled.

  The sound source unit 7 includes a sound source (including software) and an effect imparting DSP, generates a musical sound signal corresponding to the performance data processed by the CPU 1, and the sound system 11 connected to the sound source unit 7 is a D / A A conversion unit, an amplifier, and a speaker are provided, and a musical tone based on a musical tone signal from the sound source unit 7 is generated.

  The communication I / F 8 shown in the figure collectively represents various interfaces connected to a local area network (LAN), a general communication network such as the Internet and a telephone line, or a MIDI network. Various information can be exchanged with various external devices 12 such as other computers and MIDI devices. For example, when no control program or data is stored in this apparatus, a control program or the like can be downloaded from another computer 12 via the communication I / F 8. In addition, actual performance data and automatic performance data can be captured from the communication I / F 8 by using various MIDI devices including performance data input devices such as other keyboard instruments.

[Screen display example]
In the performance instruction system according to one embodiment of the present invention, a guide lamp or a shift button corresponding to the pitch instruction content according to the performance information for a keyboard having a predetermined key range size displayed on the display screen as the performance information progresses. When the guide lamp is lit, the presence position of the key corresponding to the pitch instruction is notified, and when the shift button is lit, it is notified that there is no corresponding key in the displayed keyboard. Can proceed effectively. FIG. 2 and FIG. 3 show examples of screen display for explaining the change of screen display according to one embodiment of the present invention in principle very simply.

  Here, the outline of the performance instruction in this performance instruction system will be described very simply with reference to FIGS. In this system, the keyboard DK is displayed on the screen SC with a predetermined key range size RK (25 keys in the figure). When the key corresponding to the instruction pitch (G3) based on the performance information is in the currently displayed keyboard DK, the corresponding guide lamp GL is turned on to change the display mode of the corresponding key [FIG. 2 (1)]. . On the other hand, when the key corresponding to the instruction pitch (D4) based on the performance information is not in the display keyboard DK, the shift button SBb (SBa when the corresponding key is on the bass side) is lit (ON) and the corresponding key ( D4) is informed that it is outside the key range of the display keyboard DK [FIG. 3 (2)]. In addition, when the user operates the lit button SBb (SBa), the keyboard display is automatically switched to the key range (C4 to C6) including the corresponding key (D4) according to this operation (this function is changed to “applicable” In addition, the display mode of the corresponding key (D4) in the display keyboard DK whose key range has been switched is changed by turning on the guide lamp GL [FIG. 3 (3)].

  Hereinafter, FIG. 2 and FIG. 3 will be described in more detail. When performing the performance guide in the performance guide mode, when the user selects predetermined music data from the performance data stored in the ROM 3 or the external storage device 4, a keyboard display screen is displayed on the display 10 in accordance with the performance information of the selected music data. SC is displayed. FIG. 2 (1) shows an example of the keyboard display screen SC at a certain point in time. On the keyboard display screen SC, a keyboard image (referred to as “display keyboard”) DK is displayed with a predetermined key range size (also referred to as “key range width” or “number of keys”) RK in accordance with the panel settings. Further, a partial key range corresponding to the key range size RK is assigned to the key range (also referred to as “display key range”) of the display keyboard DK from the entire key range of the keyboard operator in the input operation unit 5.

  In the example of the display screen SC in FIG. 2 (1), the key range size RK is set to 25 keys (25 semitones in terms of pitch), and the display range to be assigned to the keyboard display, that is, the display of the display keyboard DK. The range is a range of pitch values C2 (48) to C4 (72). The number “48” in parentheses represents a key number, and the same applies to the following. In addition, pitch notation symbols (“C2”, “C4”, “C3”) are displayed at key points of the display keyboard DK (for example, in the vicinity of the key of the reference pitch name “C” located at both ends and the center). Thus, it is possible to inform the user of the key range of the currently displayed keyboard DK. Further, in the display state of FIG. 2A, the key press of the pitch G3 (67) is instructed by the performance information.

  In this case, since the pitch G3 (67) of the key to be pressed is in the key range C2 to C4 of the display keyboard DK [C2 (48) <G3 (67) <C4 (72)], FIG. ) Of the guide lamps GL that can be displayed corresponding to each key in the same key range, the guide lamp corresponding to the key of the pitch G3 is lit and displayed, and the user should press the key G3. To guide. In addition, left (low sound side) and right (high sound side) shift buttons (also referred to as shift icons) SBa and SBb arranged on the left and right sides of the display keyboard DK are not lit (OFF) at the time of FIG. The corresponding key range migration function by the user operation is disabled.

  The guide lamp GL shown in the figure means a display element having a function of indicating that the key is in a performance state by changing the display mode of the key instructed to press the key (the display state of the key at this time is “ON”) Status display ”). Therefore, as an actual method of displaying the key that is instructed to press the key, a guide lamp that is lit in each key may be displayed as it is as shown in the figure, for example, the color of the key that is instructed to press the key, The display form of each key itself may be changed, such as changing the brightness and / or pattern. Alternatively, a guide lamp corresponding to each key may be displayed outside the display keyboard DK (that is, near the upper side or the lower side) to guide key pressing.

  Next, when the key press of the pitch D4 (74) is instructed by the performance information, the keys C2 (48) to C4 (72) are displayed on the screen SC as shown in FIG. 3 (2). The display of the keyboard DK is maintained, but the guide lamp GL of the key G3 is turned off (OFF). In this case, the pitch D4 of the key to be pressed is outside the key range C2 to C4 of the display keyboard DK and is higher than the highest pitch C4 of the display keyboard DK [C4 (72) <D4 (74)]. The right (high sound side) shift button SBb located outside the high sound side (right side) of the display keyboard DK is turned on (ON), and the key D4 to be pressed is on the high sound side (right side) outside the key range C2 to C4 of the display keyboard DK. ) And that the corresponding key range shift function is enabled by operating the treble shift button SBb.

  When the user operates (clicks, etc.) the high-frequency shift button SBb that is lit on the display screen SC of FIG. 3 (2) using the panel operator 5 such as a mouse, the corresponding key range shift function is executed. The display keyboard DK is scrolled for a very short time at a predetermined speed (number of keys / unit time), and after scrolling, the display state switched to the keyboard display screen SC as shown in FIG. 3 (3) is maintained. . On the keyboard display screen SC after switching, the predetermined key range C4 (72) to C6 (96) [C4 (72) <D4 (74) <including the pitch D4 (74) instructed by the performance information at this time. C6 (96)]. Further, the treble shift button SBb is turned off and the key guide lamp GL corresponding to the instruction pitch D4 is turned on to guide the user to press the key D4.

  Further, when the key press of the pitch E3 (64) is instructed by the performance information, as shown in FIG. 3 (4), on the screen SC, the display keyboard of the key ranges C4 (72) to C6 (96). The display of DK is maintained, and the guide lamp GL of the key D4 is turned off (OFF). In this case, the pitch E3 of the key to be pressed is outside the range C4 to C6 of the display keyboard DK and lower than the minimum pitch C4 of the display keyboard DK [E3 (64) <C4 (72)]. The bass shift button SBa located outside the bass side (left side) of the display keyboard DK is turned on (ON), and the key E3 to be pressed is on the bass side (left side) outside the key range C4 to C6 of the display keyboard DK. In addition, the user is informed that the corresponding key range shifting function is enabled by operating the bass shift button SBa.

  Therefore, if there is a user operation of the low-side shift button SBa that is lit, the display keyboard DK is scrolled by the corresponding key range shift function, although not shown, and after scrolling, a predetermined key range including the indicated pitch E3 ( For example, it is changed to C2 to C4). At this time, the bass shift button SBa is turned off, and the key guide lamp GL corresponding to the designated pitch D4 is turned on to guide the user to press the key E3. Similarly, the lighting of the guide lamp GL or the shift buttons SBa and SBb is controlled according to the key pressing instruction contents by the performance information. If the shift buttons SBa and SBb are lit, the display keyboard DK is displayed according to the user operation. The key range of is changed.

[Operation flow for performance instructions]
In the performance instruction system according to one embodiment of the present invention, the above-described display switching can be realized by executing performance instruction processing according to a performance instruction program. FIG. 4 is a flowchart showing an example of the display switching operation based on the performance instruction process according to the embodiment of the present invention.

  When the user operates the input operation unit 5 to start the display switching operation flow by the performance instruction process, first, in step S1, initial setting is performed and the setting content is stored in the RAM 2. For example, in accordance with a user's setting operation using the input operation unit 5, desired music data selected from performance data stored in the ROM 3 or the external storage device 4 is set as a performance instruction source. The keyboard DK key range RK displayed on the keyboard display screen SC of the display 10 and the reference key range (initially displayed key range) according to the setting conditions according to the user operation or the preset default setting conditions. Scroll speed (when scrolling when switching areas) is set.

  Next, the process proceeds to step S2, and if there is a performance guide start operation by the user, the performance guide guide screen SC is initially displayed on the display 10 in accordance with the setting contents in step S1, and the progression of the song data is started. In S3, it is determined whether or not there is a stop instruction. While the performance guide stop operation is not instructed by the user based on the performance guide stop operation or the progress end of the performance information (S3 → NO), a specific display switching operation (S4˜) after the note-off acquisition step S4. Proceed to S13). In the following, a step symbol “S...” Is indicated alone in parentheses to indicate the corresponding step.

  In the note-off acquisition determination step (S4), it is determined whether or not note-off event information (hereinafter referred to as “NoteOff information” or simply “NoteOff”) has been acquired from the performance information of the selected song data. If the information is not acquired (S4 → NO), it is determined whether or not note-on event information (hereinafter referred to as “NoteOn information” or simply “NoteOn”) is acquired (S5). If it is determined in this note-on acquisition determination step that NoteOn information has been acquired (S5 → YES), the indicated pitch represented by the NoteOn information is displayed in the display range (display) of the current keyboard DK stored in the RAM 2. It is determined whether or not the indicated pitch is included in the display range of the keyboard DK (S6).

  Here, for example, when the indication pitch [G3, D4] is included in the display range [C2 to C4, C4 to C6] of the display keyboard DK as shown in FIG. S6 → YES), the key guide lamp GL corresponding to the pitch [G3, D4] indicated by the NoteOn information is turned on (ON), and the key guide is displayed in the ON state (S7).

  On the other hand, for example, as shown in FIGS. 3 (2) and 3 (4), the instruction pitch [D4, E3] represented by the NoteOn information is included in the display range [C2 to C4, C4 to C6] of the display keyboard DK. If not (S6 → NO), if the instruction pitch [D4] is higher than the pitch of the display range [C2 to C4] (FIG. 3 (2)), the right shift button SBb is turned on (ON) When the instruction pitch [E3] is lower than the display range [C4 to C6] (FIG. 3 (4)), the left shift button SBa is turned on (S8).

  Whether or not any of the shift buttons SBa, SBb is operated by the user after the guide lamp GL or the shift buttons SBa, SBb is turned on (S7, S8) or when the NoteOn information is not acquired (S5 → NO). (S9), when any of the shift buttons SBa, SBb is operated (S9 → YES), it is further determined whether any of the operated shift buttons SBa, SBb is lit. (S10).

  Here, for example, as shown in FIG. 3 (2), when the operated right shift button SBb is in a lit state (S10 → YES), the corresponding key range shift function causes the corresponding key range shift function as shown in FIG. 3 (3). The keyboard DK in the range [C4 to C6] including the instruction pitch [D4] represented by the current NoteOn information is displayed on the display screen SC, and the key guide lamp corresponding to the instruction pitch [D4] of the NoteOn information GL is turned on (ON), and the key guide is turned on (S11). Further, the range of the keyboard DK displayed on the screen SC is stored in the RAM 2 as the current display range, and the display range information so far is updated.

  Further, the operated shift buttons SBa and SBb [right shift button SBb in the example of FIG. 3 (3)] are turned off (S12). If there is other NoteOn information not included in the display range of the display keyboard DK at this time, the shift buttons SBa and SBb corresponding to the display range at this time are turned on. For example, in FIG. 3 (2), if the pitch E6 (98) is in addition to the pitch D4 (74), the display keyboard DK (display key range C4˜ Even after switching to C6), the lighting state of the right shift button SBb is maintained. In addition to the pitch D4 (74), if the pitch E3 (62) is instructed, the display keyboard DK (display key range C4 to C6) in FIG. 3 (3) is switched. After that, the left shift button SBa is turned on [in this case, the guide lamp GL of the key E3 is also turned on on the display keyboard DK (display key range C2 to C4) in FIG. 3 (2) which is the original display state. ing. ].

  When the operated shift buttons SBa and SBb are not in the lit state (S10 → NO) after changing the display range of the display keyboard DK, turning on the key pressing guide, and turning off the shift button (S11, S12), or any When the shift buttons SBa and SBb are not operated (S9 → NO), the process returns to the stop instruction determination step S3, and while the NoteOff information is not acquired in the note-off acquisition determination step (S4) (S4 → NO), the above-described steps. The processing operations of S5 to S12 are repeatedly executed. When the shift buttons SBa and SBb are not lit (S10 → NO), the display keyboard DK is scrolled by the number of keys corresponding to the operation amount (number of operations and operation time) of the shift buttons SBa and SBb (display keyboard). If there is a corresponding key that is lit during DK, the corresponding key also moves in the lit state along with this scrolling.) After changing the off display key range, return to stop instruction determination step S3. Also good.

  Further, when NoteOff information is acquired from the performance information in the note-off acquisition determination step (S4) (S4 → NO), the key release instruction pitch at which the key release is instructed by the acquired NoteOff information is displayed at present. Compared with the display range of the keyboard DK, when the key release instruction pitch is included in this display range, the guide lamp GL that is lit corresponding to the key release instruction pitch is turned off (OFF). The corresponding key is displayed in the OFF state (S13). After this processing operation, the processing proceeds to the processing operations after the note-on acquisition determination step (S5), and after the processing operations in steps S5 to S12 described above, the process returns to the stop instruction determination step S3 again, and the above-described steps S4 to S13 are performed. The processing operation of is repeatedly executed. Then, when returning to the stop instruction determination step (S3), if the stop of the performance guide is instructed based on the user operation or the end of progress of the performance information (S3 → YES), this display switching operation flow is ended.

[Various Embodiments]
Although a preferred embodiment of the present invention has been described above, this is merely an example, and the present invention can be variously modified without departing from the spirit thereof and can be implemented in various modes. it can. For example, as in the embodiment, in the performance guide mode (practice mode) in which the key to be pressed by the user is displayed in accordance with the performance information, the user's key press is performed with respect to the progress of the key guide instructed to press the key. Adopts a method that advances the guide according to the performance information regardless of the content of the key press, even if the guide advances when the key matches the model key press according to the pitch of the performance information (key press match progress) May be. In addition to such a performance guide, keys corresponding to each sound may be simply displayed as a guide during automatic performance.

  In the embodiment, the display mode of the shift button (SBa, SBb) that is always displayed on the display screen (SC) is changed for the display prompting the user to change the key range. An instruction display may appear when necessary from a state that is not displayed. Alternatively, instead of displaying on the display screen, a lamp or a switch with a lamp provided on the operation panel (5) on the apparatus main body may be used. Further, the display function and the operation function of the shift button (SBa, SBb) may be separated and each function may be realized by different means. For example, an out-of-key notification mark is displayed on the display screen (SC) when the pitch instruction of the performance information is outside the key range of the display keyboard (DK), and an area switching instruction is given on the operation panel by a user operation. A direction switch may be provided as described above.

  Further, in the display screen (SC) after the key range switching in the embodiment, the reference key “C” of the display keyboard (DK) comes to both ends, but the key corresponding to the indicated pitch is displayed on the display keyboard ( DK) may be located at the center. In short, as long as the key area includes the corresponding key, any key area can be used as necessary. In the display screen (SC), a display that can grasp performance information of a certain section such as a score or a piano roll may be displayed together with the display keyboard (DK).

  Further, the music data that is the basis of the performance instruction may be read out and used in advance in the apparatus, for example, transmitted in real time from various MIDI devices (external devices 12) via cables. Coming performance data may be used.

It is a block diagram which shows the hardware structural example of the performance instruction | indication system by one Example of this invention. It is a part of screen display example by one Example of this invention. It is the other part of the example of a screen display by one Example of this invention. It is a flowchart showing an example of the display switching operation | movement by one Example of this invention.

Explanation of symbols

SC (keyboard) display screen,
DK keyboard image (display keyboard),
RK key range size (key range width),
GL guide lamp,
SBa, SBb Left (low sound side) or right (high sound side) shift button (shift icon).

Claims (2)

Performance information acquisition means for sequentially acquiring performance information;
Keyboard display means for displaying the keyboard with a predetermined key range size on the screen;
When there is a key corresponding to the pitch of the acquired performance information in the displayed keyboard, key display changing means for changing the display mode of the key,
Out-of-key notifying means for notifying that the key is outside the key range of the displayed keyboard when there is no key corresponding to the pitch of the acquired performance information in the displayed keyboard;
A key range switching instruction means for instructing key range switching in response to a user operation;
When the key range switching is instructed in the state where the notification by the out-of-key information means is performed, the keyboard display means switches the key range of the keyboard displayed on the screen to a key range including the key, The performance changing device is characterized in that the display changing means changes the display mode of the key in the keyboard whose key range is switched. A performance information acquisition step for sequentially acquiring performance information;
A keyboard display step for displaying a keyboard with a predetermined key range size on the screen;
When there is a key corresponding to the pitch of the acquired performance information in the displayed keyboard, a key display change step for changing the display mode of the key,
If there is no key corresponding to the pitch of the acquired performance information in the displayed keyboard, an out-of-key notification step for notifying that the key is outside the displayed key range;
A key range switching instruction step for instructing key range switching in response to a user operation,
When the key range switching is instructed in the state where the notification in the out-of-key notification step is performed, in the keyboard display step, the key range of the keyboard displayed on the screen is switched to the key range including the key, In the key display changing step, a performance instruction program for causing a computer to execute a procedure for changing the display mode of the key in the keyboard whose key range has been switched.

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