Adjust tuning of slices and layers

[jaap3]

Please make it possible to create variations of sounds by adding (fine)tune controls. These would allow to adjust the playback rate of the sample in semitones and cents.

I'm imagining two range inputs, similar to the pti-file-inspector.

[jaap3]

There range by which the playback rate is adjustable is different between browsers. I believe Firefox allows for the least amount of adjustment, take that as the max. in order to be crossbrowser compatible.