Pata-Tracker version 1.5.2 released

The major new feature of this release is the ability to undo/redo. Actions history stack is local to each song and instrument.

Other features requested by the community included in this release are:

• mute/solo channels from keyboard shortcuts
• export each channel separately (stems)

bugfixes

• fix sample deletion
• fix FM oscillators drifting
• normalize mixdown volume