Hi,
I've just uploaded another prerelease of PyTone 2.2.0:
http://www.luga.de/pytone/download/PyTone-2.2.0pre2.tar.gz
Since 2.2.0pre a few new (and old) bugs have been fixed, in particular the crash when accessing the playlist.
If no further errors turn up, I'll make a real release within the next few days.
Jörg