I also think that the song is seperate from the composer but it really depends on what emotions the composer's life decisions evoke in me. I have two daughters and if I found out that the composer of a favorite song was a pedophile then I would probably not be able to sing the song again as much as I would like to. It would start a thought process in me that I would hate. If the composer was a drug addict or something along those lines, well, then, he/she is doing damage to themself and most likely I would be quite capable of singing the song.....unless the composer overdosed and left two children parentless or something like that.... It's amazing the effect two daughters can have on your own life decisions and opinions....hmmmm...

Frank