In the Beta 1.9 pre-release 2, you introduced 9 new music disks making the total 11. The "cat" and "13" disks are currently the only obtainable music disks without commands. Perhaps you could make the other 9 disks obtainable like the "cat" and "13" in dungeon chests and killing a creeper with a skeleton arrow. We need a legit way to get them! At least a legit way to get 11!
Only as long as they record an awkwardly similar mix to "We Didn't Start the Fire" by Billy Joel (or the real deal in instrumental form, if they could get permission) Does anyone else share this sentiment?
The 11 Music Disks.
http://www.minecraftforum.net/topic/246025-100sparcs-tweaks-creeper-dungeons-more-stronghold-and-mineshaft-loot-torches-on-stairs/page__view__findpost__p__11195258__fromsearch__1
Don't know if you consider that legit or not, but it's a fun way to find them.
Better dungeon loot, bones in dirt, Witch hut loot, ect
But then again, I did download the newest snapshot!