This extension was inspired by the muscle memory workflow of the OP-Z, the versatility of Ableton Live, and the hands-on approach I developed over the years using the SP-404.
Mark cue points, loop audio/video, apply live effects, and customize your beatmaking experience on YouTube.
The YouTube Beatmaker Cues extension supports precise pitch adjustments, audio and video looping, effects toggling, and intuitive cue management. Use keyboard shortcuts or the detailed Advanced Panel for quick control.
- Unified TransportClock syncs audio and MIDI loops
- Four MIDI loopers mirror the audio loopers with matching colors and progress bars
- Switch between audio and MIDI loopers in the Advanced panel
- Undo and redo restore MIDI loops
- "Nova Bass" synth window with realtime controls and pitch sync to the video feed
- Layer multiple presets or generate new ones with the Random button
- Synth stays off until opened and fades out cleanly when closed
- Loops align perfectly to the master start time for rock‑solid sync
- Progress bars track each loop's own start so visuals line up every time
- The longest clip becomes the reference so loops of different lengths stay in phase
- Newly recorded loops begin playing on the very next bar for snappier response
- Reduced latency and cleaner loop boundaries for punchier recordings
- Four independent audio loopers with bright progress bars beneath the looper button
- Each bar shows four tick marks so you can follow the beat
- Progress bars are a uniform 1.4 px thick
- Export downloads every active loop as its own track with BPM
- Pitching loops renames files with
-pitched-<BPM>bpm
- Works inside the YouTube iframe on Samplette.io and other
youtube-nocookie.comembeds, even when the referrer is hidden. The toolbar becomes scrollable and MIDI features are disabled there. - Minimal bar and advanced window become scrollable when space is limited
- Route audio to any available output device via the Audio Out dropdown ("Default output" preselected)
- Choose your microphone via the Audio In dropdown ("Default input" preselected)
- Choose a device from the Monitor In dropdown and toggle Mon On/Off to hear that source through your computer's default speakers. Monitoring starts off on each page load and stops cleanly when you navigate away.
- Output routing adjusts automatically when selecting a new device
- Lower latency when switching outputs using native sink routing when supported
- Input monitoring uses a separate low-latency
AudioContextfor minimal delay - Advanced control buttons now display in two columns for easier access
- Super Knob scrolls cues using any MIDI CC. Endless encoders behave like regular 0–127 knobs for now. Hold Shift to reposition before continuing and choose a speed (1–3) in the MIDI mapping window. Speed 1 is the default, with 2 and 3 moving cues faster.
- Avoids duplicate initialization in YouTube iframes to prevent freezes
- Mic button cycles Off → Record (green) → Monitor (red) so you can hear the mic while capturing loops
- Adjust cue points live using a single MIDI knob
https://www.instagram.com/reel/DKsfsPPMOxg/?igsh=NzkzdDVhajFrZWk1
https://www.instagram.com/reel/DKvgj2TIICH/?igsh=Ym5xNDR0bXUzZXZj (Thanks for the video Noche !)
The extension supports managing multiple sample packs at once. Use the multi- select dropdown in the advanced panel to load several packs together or delete unused ones. Creating a new pack only asks for a name; you can later import kicks, hihats and snares using each row’s "Imp" button. Samples are stored in the pack and persist between sessions. You can delete individual samples from any pack; built-in samples remain protected, but extra ones you add to the built-in pack can be removed.
Manage multiple compressors (Native, Tape Warm, Roland SP404OG) to shape your audio character. Adjust settings effortlessly through a user-friendly interface.
Integrate MIDI controllers with customizable mappings to trigger cues, samples, and effects directly.
Samples and cue points persist between sessions. Easily export loops, manage cues, and maintain workflow efficiency.
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🎯 Cue Points
Set up to 10 visual cue points on any YouTube video. Use keyboard shortcuts or drag & drop markers. -
🔁 Audio & Video Loopers Record loops in sync with video or audio. Use
R,S,D, orFto control up to four separate audio loops. The first loop defines the bar length and tempo. Additional loops of any bar count launch on the next bar so everything stays aligned. Loops keep the exact length you recorded with no trimming. Press the loop key again to finish recording on the next bar. Double press a loop key to mute that loop at the bar boundary and single press to unmute instantly—just like legato mode. Double press twice more to erase it. Loops rejoin mid‑phrase so sync stays tight even when loops have different lengths. Exporting downloads each active loop with the rounded BPM in the file name. UseVfor the video looper and double press to erase it. Hold Option + Cmd+R to erase all loops. Each looper button shows a slim progress bar that pulses while recording. Hold the mapped MIDI Shift note while pressing any loop key to erase that loop instantly. Progress bars speed up or slow down when loops are pitched so the visuals stay in sync. -
🎚️ Pitch Control
Independent pitch control for video and loop playback. When targeting loops, the pitch slider adjusts all four audio loopers together and exported files include the modified pitch. If loops are pitched when exporting, each file name ends with-pitched-<BPM>bpmwhere<BPM>reflects the new tempo. Export uses offline rendering for reliability. -
🎛️ Live Effects
Toggle EQ (E), Compressor (C), Reverb (Q), and Cassette (W) in real time. -
👁️ Minimal & Advanced UI
Choose between a clean minimal bar or a full panel with all controls. -
🥁 Sample Kits
Manage built-in and imported samples (kick, hihat, snare), randomize or load packs on demand. -
🎹 MIDI Support Use your MIDI controller to trigger actions. Custom mappings are available via UI, including key and MIDI assignments for all four loopers.
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🔄 Super Knob Select any cue via pad, keyboard, or MIDI note and twist the mapped knob to slide its position left or right. Endless encoders currently act like normal 0–127 knobs for maximum stability. Hold Shift (or a MIDI shift note) to reposition, and choose a speed from 1 (default) to 3 in the MIDI mapping window. Any CC number can be assigned.
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👇 Touch Sequencer
10 pads, 16-step sequencer, tap tempo, and BPM-based triggering.
- Download the latest version of the Extension.
- Go to
chrome://extensions/and enable Developer Mode. - Click Load unpacked and select the unzipped folder.
- Refresh any YouTube tab and click on the extension UI to activate audio.
To create the downloadable archive yourself, run bash build_release.sh. The script outputs ytbeatmakercues-<version>.zip.
| Action | Key |
|---|---|
| Set/Jump to Cue | Ctrl/Cmd + [1–0] |
| Audio Loopers | R / S / D / F |
| Video Looper | V |
| EQ Toggle | E |
| Compressor Toggle | C |
| Reverb Toggle | Q |
| Cassette Toggle | W |
| Undo / Redo | U / Cmd+U |
| Erase Loop A | Cmd+R |
| Erase Loop B | Cmd+S |
| Erase Loop C | Cmd+D |
| Erase Loop D | Cmd+F |
| Erase All Loops | Cmd+Option+R |
| Erase Video Loop | Cmd+V |
| Export | Ctrl/Cmd + Enter |
| Pitch Down / Up | , / . |
| Random Cue | - |
| Nova Bass | N |
| Blind Mode | B |
| Show Advanced Panel | A |
Press N or the advanced panel’s Instrument button to show the Nova Bass window. Opening the window activates your last preset if the synth was off; closing it powers the synth down. The minimal bar has its own Instrument button that simply toggles the synth on or off without opening the window. Twelve built-in presets—Resonate, Precision, 808 Boom, Warm Organ, Moog Thump, Soft Pad, String Ensemble, FM Keys, Pluck, Sweep Lead, Bass Cut and Sample Tone—cover a wide range of classic tones and play at 15% volume by default. You can layer multiple presets together just like sample packs. Compression and limiter sliders make it easy to tame levels.
The popup hides detailed controls until you click Advanced, keeping the interface clean.
While the synth is active, the 1–0 keys plus - and = play a chromatic scale from the chosen octave. The Scale dropdown lets you switch to major or minor if desired.
The synth has a pitch fader synced to the video by default. Uncheck Sync Video to adjust it independently and use the transpose slider for coarse tuning. A dedicated Tune slider lets you shift each preset in 12‑step increments from −24 to +24 semitones, and the value is stored per preset. All parameters are adjusted with labeled sliders so you know exactly what each one does.
Moving any knob instantly updates the current preset. Built‑in presets cannot be deleted but you can save your tweaks as new ones. Each preset stores oscillator type, engine (analog, FM, wavetable or sampler), filter, ADSR, effects and Mode (poly, mono or legato). Example wavetables and a sample tone demonstrate these engines. In mono mode, triggering a new note now cuts the previous one immediately so bass lines stay tight.
Each preset stores oscillator type, engine, filter settings, ADSR envelope and effect parameters (delay, reverb, compression, limiter, volume and LFO). Use Save to keep changes, Delete to remove custom presets or Export to share them. The Random button quickly generates a usable sound.
All loop keys and MIDI notes can be reassigned in the Key Mapping and MIDI Mapping windows. Holding the MIDI Shift note while pressing a loop note erases that loop.
- Press
Tto open - Press
Sto start/stop - Set cue points on pads or trigger them
- Use the 16-step grid to play cues rhythmically
- Tap tempo, erase steps, or close the window anytime
- Native: Hard, clear compression.
- Ultra Tape: Vintage saturation, SP303-inspired.
- Bright Open: Bright and clean compression with analog warmth.
🔊 Tip: Reduce YouTube volume to ~40–50% for best effect with compression modes.
💬 DM on Instagram: @owae.ga
🎥 Video tutorial: YouTube
📄 Manual GoogleDoc
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