The Mapping Page
Click Mapping in the slot header to see how the samples are laid out: across is the keyboard, up is how hard the note is struck. You don't need this page to play.
Low Cut
Low Cut removes rumble below each note's own pitch, so low notes stay clear without thinning the high ones. It is on for every instrument.
- Padding — how far below the note the cut starts.
- Slope — how steep it is.

Saving your own version
Save As in the instrument menu keeps your changes as a new instrument. Saving over a factory instrument first offers to back it up.