This quick clarification breaks down how Instrument, MIDI, and Audio Effect Racks differ under the hood in Ableton Live. Instrument and MIDI Effect Racks share the same Key, Velocity, and Chain Select zone options, giving you dynamic ways to split or fade between chains based on note range or velocity.
Audio Effect Racks work differently. They only include a chain editor, no zone mapping, which makes them the right tool specifically for crossfading between two distinctly different chains of audio effects rather than splitting by performance input.