Bug reports & end-user support for Akai's MPC Software 'controllers' including the new MPC Studio 2, the MPC Touch, MPC Renaissance & original MPC Studio and MPC StudioB lack.
I'm using the renaissance. I don't see the option for note variation. instead of giving me different tones across my 16 pads it has the same tone on all of them.
When you open up the 16 levels window, they're should only be a few parameters you can change. Try them, off the top of my head your looking for "tuning".