Today I stumbled upon a very old addon that got miraculously updated for 10.2
https :// www.curseforge .com/wow/addons/queue-sound
I’ve tried several addons and Weak Auras over the last couple of months, and none of them worked well. Most of them only played a sound/song for the first queue, but then if somebody doesn’t accept, did not work for the follow-up queues, or bugged the UI.
This one however seems to work well in all situations.