EXS 24 Logic Sampler Users Group

Groove control is more like a REX file than a Soundfont. The keys denote
percussion in sequence. In other words, if you play the lowest sample and
keep travelling up each semitone on the keyboard, you will hear the
percussion as it was played originally by the player. This is what separates
GC from all other formats. Think of each key up the board as each step in a
live players hand strokes. It's not just a set of drums to be hit at any
given key (although you can use it that way), but much more when you
consider that the "groove" is laid out sequentially up the keyboard. I hope
I'm making sense here... Jer