AICN has a tidbit regarding the upcoming Clone Wars 3-D show from musician Eric Riegler:
The EmCee introduced Eric, and said Eric had just finished recording some music for the Star Wars TV Series. I followed up with Eric during the intermission, and he told me the following: Yes, he did in fact record music for the series. Each of the planets has its own theme, and the one he was brought in to develop music for was patterned after Bulgaria. So, his music was patterned after an instrument (I think he called it a gaeda (spelling?), a bagpipe-like instrument played there), although he performed his music on the Irish Pipes. He said it looked amazing, and Lucas had done an incredible job of the look/feel of at least what he saw.
He also said he was told the series/his episode would be airing Summer, 2008.