Tweak parameters per track?

[vincerubinetti]

This tool is mostly meant to be used on one sequence from a DAW at a time. That is, most of the time users should be loading a midi with a single track. As such, to keep things simple, there is only one global copy of all the parameters, which affects all the tracks in the same way. If people start using this tool to humanize whole, full-length MIDIs, it'd be good to have a separate copy of all the parameter states for each track. Right now, the random seed is also incremented based on the track #, so at least each track will be a different randomness, but it could be annoying when you find a base seed setting that looks good for one track but doesn't look good on another track.