Akai MPC TOUCH User Manual page 200

Master
In the Master tab, you can set the playback mode and tuning for the overall Program.
The Master tab for a drum program.
Polyphony sets the playback mode for the program's pads. In Mono Mode, only one pad will sound at a
time. If a pad is played while another (or the same one) is still playing its sample(s), the new pad will
immediately mute all other currently playing pads in that program. In Poly Mode, several pads can be
triggered at the same time (limited only by the total number of voices available).
Semi lets you transpose the selected program up to 12 semitones up or down.
Fine provides fine-tuning of the program by fractions of a semitone up or down.
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