Roland MV-8800 Owner's Manual page 54

Sampler structure
Instruments
Instruments are where you can assign patches so that the patches can be played from the velocity pads or
sequencer. Each instrument has sixteen "parts," and can handle sixteen patches simultaneously.
Audio phrases
Since audio phrases can be synchronized to the tempo of the sequencer without changing their pitch, they are
appropriate for handling loop phrases or vocal phrases of several measures in length.
M-54
MV-8800 Owner's Manual
Part1
Patch
Instruments
Wave memory
(DIMM)
Sample
Audio phrase
Part16
Pitch
BPM sync