Quick Start
PadControlsPatternMaster
Press PLAY or Space to start and stop. The eight black pads are now the main performance and mixer surface. Click a pad to select and audition it, then click steps to program that sound. Right-click a pad to open level, pan, pitch, kit, and file controls directly above the pad.
Pattern Editing
Right-click StepFill Every 2/4/6/8Copy Track
Use 16, 32, 64, or 128 steps. Right-click an active step square to erase that hit. Right-click an empty step or the sound name on the left for fills and rolls, or right-click the sequencer panel for pattern copy, paste, clear, save, load, and P1/P2 linking.
Keyboard And Right Click
SpacePlay/Stop1-8Trigger Pads
Space starts and stops transport. Number keys 1-8 trigger pads. A/W/S/E/D/F/T/G/Y/H/U/J/K previews the selected sound across pitch. Double-click sequencer sound names to browse a replacement file. Right-click pads or tracks for Mute, Reverse Sound, Sound Browser, Piano Roll, Browse Sound File, Mixer, Copy, Paste, Undo, and Redo. Undo/Redo keeps the last 100 edits.
Swing Engine
50% Straight1/8 or 1/16Early / Late
SWING starts at 50%, which is straight timing. Choose 1/8 to move the second eighth note inside each quarter note, or 1/16 to move the second sixteenth note inside each eighth note. Values above 50% delay the paired hit for a laid-back feel. Values below 50% pull it forward for negative swing. Try 58% for a clear pocket or 67% for a strong triplet-style feel.
Piano Roll And Key Range
Right-click SoundPiano Roll-12/+12 ST
Right-click a sound name and choose OPEN PIANO ROLL, or right-click the sound name to open it immediately. Hover keys to preview. Click a key to set that sound's pitch from -12 to +12 semitones around C3. Semitones are musical half-steps; 12 semitones equals one octave.
Advanced Pattern Commands
Right-click StepFillCopy/PasteClear
Right-click a sound name on the left to open Mute, Sound Browser, Piano Roll, Browse Sound File, Mixer, Add Every 1, 2, 4, 6, or 8, Copy, Paste, Clear, Undo, and Redo. Right-click an active step square to erase it. Right-click an empty step to use the same fill commands from that step position.
128 Step View
128ZoomScrollFollow
Use 16, 32, and 64 in fit-to-panel mode for fast programming without zoom. Use 128 for long rolls and full phrases. At 128, the ZOOM slider changes step width, and the orange scrollbar moves across the hidden portion of the sequence. During playback the view follows the active step.
Sampler Key Shift And Stretch
Load SampleKey ShiftStretch
KEY SHIFT moves the sample up or down by semitones while preserving the sample's timing. STRETCH fits the loaded sample to the current tempo and pattern feel when you want it locked to the beat. CUT SELF stops previous chops and also cuts them at pattern wrap; turn it off when you want chops to bleed.
Pad Mixer Controls
Right-click PadLevelPanPitch
Right-click any black pad to reveal its compact mixer strip. LEVEL sets the pad gain, PAN places it left or right in the stereo field, and PIT shifts that sound by semitones. Use KIT to load built-in sounds or FILE to browse your own sound for that pad.
Sound Kits
HoverAuditionClickAssign
Use SOUND KITS to browse built-in drums. Hover a sound to audition it. Click a sound to assign it to the currently selected track without leaving the beat-making flow. Close the mini browser with X CLOSE, Escape, or by clicking outside the browser panel.
Quick Commands
READYRight-clickCollapseLED
Right-click READY labels to collapse them into small status LEDs, then right-click again to restore the label. Right-click empty hardware areas to open the menu for the selected track. Use SAVE TEMPLATE to store the beat, pattern, mixer parameters, sample settings, and current machine state.
Project Files
SAVE.GR4600LOADUNDO 100
SAVE downloads a GR4600 project file containing the full machine state, custom sounds, sample data, patterns, mixer settings, and up to 100 undo/redo history steps. LOAD opens that file so you can come back later and keep working.
Export
MasterWAV/MP3StemsFX Print
EXPORT bounces a master WAV or MP3. Turn on STEMS to create a ZIP with only tracks used in the beat. PRINT INSERT FX TO STEMS includes the active EQ, chorus, reverb, phaser, and limiter on the individual stems.
Troubleshooting
No Sound?Click PagePress PlayCheck Assets
If sound does not play, click the page once, press PLAY, and check browser audio permission. If a sample drifts, turn TIME STRETCH on. If GitHub preview is silent, make sure the assets folder uploaded with the HTML.
