Increase drop rate of music for CT/ST/WoD

I've run these about 16 times since the music was introduced. I've seen one song in which I rolled low on, so I didn't get it.

Sure, having music in the game for people to work for is a nice thing, but when we have to run with 23 other people, there are people that AFK fight and do nothing, or people who are just trolls (As in people purposly screwing over WoD runs)

Can you guys please make it where at least one drops per run for each group?

I can see harder raid stuff (I.E. coil/Sephirot/Thordan/Ravana) being more difficult to get the songs for sure, but something like the towers from 2.X?