Somewhere along the line a while ago, the Yahoo! Audio Search stopped working. The API examples wouldn't return anything. There were several emails to the mailing list about it, but nothing seemed to happen, so I gave up.
Well, I was trying to figure out if I wanted to remove that data source from Tellico, or at least, add a warning about it not working. But, it appears to be working again! Except, there's way too much junk for a search on "The Beatles" to actually be of very much use. :P