How about a female voice that repeats every 10 seconds, "Your call is important to us, and will be answered when a representative becomes available"
Drives me crazy
What about silence, with a single beep every 10 seconds or so just to remind you that you haven't been cut off yet?
*twitches with rage*
Tom Waits
...and it annoys him.
Because that annoys more people then the music itself?
Burnsy
You should put an audio book on as hold music. Would be really random to just hear part of a book, which you have no idea what it is