Edit on a slot loads it here. Turn the tiles below (scroll or drag over a column), play with the computer keys (Z S X D C V …). Linked, you hear the FM-1 and its knobs show here too.
Load a bank (.syx/.mid) into the slots, or connect and read the FM-1's 64. Drag a performance from the palette onto a slot; drag the U / L chips onto a slot's UPPER / LOWER row; drag a slot onto another to reorder; ✎ renames. Connected: ▶ plays a slot or palette entry on the FM-1 (not saved), tick slots to send them.