Hittite music - PIE connections???

I recently found a book in the library dealing with a topic I never
dreamed would have so much dedicated to it: Hittite music.
Since it's in German, I have had some difficulty in understanding it
(which has been eased by 2 years of German classes and the help of a
tutor). However, I understood enough to make a large table of the types
of instruments and musicians mentioned, and gleaned some nice verbs of
relevance. I shall be uploading it to the files section.

The only Proto-Indo-European connections I could find were with some of
the verbs. Has anyone had better luck finding potential roots related
to these words?