Drag knobs and faders up or down (Shift = fine, double-click = reset); every control shows its setting as a percentage. Play with mouse, touch, MIDI or your computer keyboard: 1-ROW, 2-ROW or CUSTOM layouts, with the PC key letters printed on the piano keys. For your own layout press LEARN, click a piano key, then press the PC key you want (the next note is selected automatically, Backspace clears a note, Escape finishes). Arrow keys shift octaves and the space bar sustains. The LOOPER records a loop to play over; the SONG RECORDER captures everything you play, beats, sound changes and knob moves, and plays the whole take back. 104 presets in 13 banks; the Preset Library jumps to any of them.