I too have auditory seizures. Mine are very, very loud; steam locomotive sounds and helicopters like I'm standing right next to them. The likelihood of there being either in my living room is zero. Sometimes before I go to sleep, I hear a street sweeper; at 11pm, not in my burg!
Hearing music and voices that aren't there; that happens too. Used to drive my hubby crazy singing every song that just popped into my head unbidden; haven't done that in a very long time. I seem to have a detailed memory for music, with or without lyrics, and I think that's where the music thing comes from.