Thank you! Glad you enjoyed it.
Of course, you nailed a handful of these. (And you are correct about the instrument in the mix on 11.) I think you might kick yourself (figuratively) upon the reveal for 9. 2 might surprise you as well... we'll see.
In retrospect, I hear how much of this BFT is about the drummers. 2, 3 , 5, 6, 7, even 10 and 13 all hinge majorly on what the drummer's doing, or holding back from doing, or not doing. But I didn't really plan it that way. On only one of these tracks is the dummer is the bandleader.