I released my Renoise controls for the Steam Deck to Steam today as 'RenoiseDeck'. Not perfect, but pretty usable. Here's how:
– Left shoulder button = Edit on / off (Esc). Toggles entering notes.
– D-pad = Arrow keys, move around.
– (X) = delete. (A) = play / stop. (Y) and (B) = notes C and G for jamming, entering notes, previewing sounds etc.
– Left mousepad = 4 x 4 grid with a chromatic octave of notes starting at C on the top left. On top of of the 12 notes, there's the stopper (Caps Lock) and a couple of useful hex values. Right shoulder button shifts the grid to numbers and more hexes and effect command letters.
– Left hand back buttons: Top = F4 (Copy), Bottom = F5 (Paste).
– Right hand back buttons: Top = Alt, Bottom = Ctrl.
– Right shoulder button = Shift.
With these, you can:
– Shift + arrows = make selection in the editor.
– Alt + arrows = select instruments.
– Ctrl + arrows = manipulate the pattern sequencer.