The ability for the user to assign the tempo of a pattern. When a pattern with a specific tempo defined plays, the default project tempo switches to the pattern tempo, and when the pattern ends, the tempo changes to the tempo of the next pattern or the default project tempo.
Right now the tempo is set on a project basis, which means that all patterns have the same tempo assigned by default, and it can only be changed manually. This becomes cumbersome in a live setting, where the user might want to use different tempos as they’re changing patterns. Adjusting the tempo manually after the pattern has been changed makes the performance sloppy.
Having the ability to preassign and edit the tempo of a pattern, so that there can be different patterns with different tempos and have these changes made automatically whenever you change patterns. This would mean that in a live setting the user could transition from a song at 90 BPM and another song at 120BMP seamlessly. This could also allow the user to make a full album in a single project on the Play, and have it performance-ready as soon as it is finished. This would also further differentiator the variations and patterns, making them work better in tandem.
As of now, the user can have the Play follow the tempo from another device via MIDI In, and have the tempo changes be made by that other device; but adding another device to a live set just to have this feature is overkill. Tempo can be adjusted manually after the pattern has been changed, but that’d mean that in a live setting the user would have to remember the tempos of each of the patterns, which makes it very cumbersome.
The MPC One let’s you set the tempo per sequence and have a different, independent master tempo.