Alas, the person I studied with was strict and wanted me to throw away all my music. They wanted me to listen solely to the Kingdumb Sxxx in lieu of music.
I didn't actually throw away all my music because I hinted that such a move would derail the whole study. But they were very vocal in such music as Led Zeppelin and the likes. I did like songs like Kodachrome and Saturday Night's Alright for Fighting (embedded in tapes--have fun trying to find them and get rid of them!). They also frowned heavily on my Michael Jackson's Thriller--even though his disassociation was in 1987 and that LP came out in 1982, they felt that I was supporting "that apostate" by listening to the record instead of throwing it away.
Of course, I had to get rid of a lot of music by relegating it to inactive status. Where the songs were copied onto tapes, often purging it meant finding another song that is the same length (and the tapes sounded much more boring when finished than the originals did). The first wave were for the really bad stuff like Do They Know It's Christmas and Ratt's Lay It Down. The second wave, several years later, was for thinning the songs like Saturday Night's Alright for Fighting, We Are the World (can't you just see the demons coming out of that song?), and Steal Away by Robbie DuPree (also, Hot Rod Hearts).
Needless to say, I could use yottabytes listing all the songs I gained back after I blew off the Tower. All the ones I lost, I gained back. I also got the Led Zeppelin songs I didn't the first time around, along with Michael Jackson's Bad and Dangerous (which I didn't get the first time). And the filthiest rap I can get my hands on. Needless to say, that study conductor would not be too happy upon seeing my CD collection now.