Playing — tap a key, or drag across keys while Glissando is on to slide between notes. Use the < 0 > buttons to shift octaves.
Pitch wheel — drag and hold to bend pitch up/down in real time; it springs back to center on release. Range is set in Settings.
Mod wheel — drag up to add live vibrato while notes ring out. Depth is set in Settings. Works on both synth and sampler playback.
Velocity — sets how hard each note hits (volume/brightness). Works on both synth and sampler playback.
Pad grid — tap a pad to load a tone variation. Swipe left/right (or tap the dots) to flip through more pages. The last page has two dashed Custom slots — tap to load whatever's saved there, or press and hold (about half a second) to save your current waveform + knob settings into that slot. A small dot in the corner means it's been saved.
Knobs — Delay, Cutoff, Reverb, Resonance. Drag up/down on a knob to change it.
Sustain — hold notes after release until you tap it again. Glissando — toggles slide-between-keys. Scale — locks the keyboard to a scale. Keyboard icon — toggle key name labels. Chord icon — cycles Off → Major → Minor → 7th chord on every key. Waveform icon — cycles oscillator shape. Sampler icon — opens the sample importer/editor, which includes a Preview Sample button to audition your trim/loop/mode settings without leaving the panel.
Save / Load patch — the upload icon saves your current sound (knobs, settings, and sample) as a downloadable file; the download icon next to it loads one back in.
Settings — Master Volume, Polyphony, Velocity Curve, Pitch Bend Range, Vibrato Depth, and optional MIDI hardware keyboard input.