Akai MPC X User Manual page 516

The Drum Program note map is now Chromatic starting from C1 by default.
The Project popup now has an Audition function key.
Arpeggiator settings and XYFX location are now saved and recalled with your MPC project.
In Program Edit mode, you can now tap the keyboard-plus icon at the top of the screen to quickly convert a drum
sample to a new keygroup program.
The Slice assigned to a drum pad layer can now be automated.
Plugin instruments will now show a loading progress bar on the touchscreen for presets.
Changing an "unused" track's program no longer makes it used.
When selecting the User Template option on the Demo screen, a popup now indicates where to set a template in
the Preferences menu if one has not already been set.
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