the preferences bug is fixed in the 0.4.1-3 version. You can set the music folder there.
$ youamp-player Traceback (most recent call last): File "debian/youamp/usr/lib/python2.5/site-packages/youamp/controller.py", line 164, in _now_playingAttributeError: 'NoneType' object has no attribute 'is_connected' Traceback (most recent call last): File "debian/youamp/usr/lib/python2.5/site-packages/youamp/player.py", line 132, in _set_duration gst.QueryError: query failed Traceback (most recent call last): File "debian/youamp/usr/lib/python2.5/site-packages/youamp/controller.py", line 178, in _show_preferences File "debian/youamp/usr/lib/python2.5/site-packages/youamp/ui/preferences.py", line 94, in __init__ AttributeError: 'NoneType' object has no attribute 'is_connected' Traceback (most recent call last): File "debian/youamp/usr/lib/python2.5/site-packages/youamp/controller.py", line 217, in quit AttributeError: 'NoneType' object has no attribute 'is_connected'