Akai MPC X User Manual page 240

Key Group Semi lets you transpose the sample 36 semitones up or down, while Key Group Fine provides fine-
tuning of each layer up to 99 cents up or down.
Tip: The Edit Layers section has some parameters similar to those in this section (Level, Pan, Semi, Fine, Note
Range). Remember that Key Group parameters control the overall settings for the sample, while Edit Layer
parameters control the settings for each layer (up to 4).
Level controls the overall volume level of the loaded sample/samples.
Pan controls the overall panning of the loaded sample/samples in the stereo field.
The Lo Key and Hi Key fields let you restrict the key range used for a sample's playback. Only notes with a key
number higher or equal (Lo) or lower and equal (Hi) to the selected value will trigger a sound. The settings for Lo and
Hi are also shown in the virtual keyboard in the Edit Layers section. Alternatively, tap the piano-keys icon to open
the Set Keygroup Note Range window.
Tip: Set the Lo parameter to A0 and the Hi parameter to C8 to emulate the range of a standard 88-key piano.
Use the KG Poly (keygroup polyphony) field to determine how the keygroup will play. When set to Mono, only one
pad will sound at a time. If a pad is played while another (or the same one) is still playing its sample/samples, the
new pad will immediately mute all other currently playing pads in that program. When set to Poly, several pads can
be triggered at the same time, limited only by the total number of voices available. You can also select a specific
number of pads (2–32) so that you can play up to this many pads at the same time (unless they exceed the total
number of voices available).
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