There's a song at around 11:32 that I really want to know but can't find.
I've looked at the sound track and can't find it. I've looked nearly everywhere but to no source!
I'm pretty sure this sound track does not actually have a name. You can find it by googling ~ BLEACH OST - Shiro Sagisu - BL_86. I think BL_86 was the official title of this sound track.
Edit: Upon further diggin. BL_86 is the offical title of this soundtrack. It appears in Bleach 5th Anniversary Box CD 1.