Wachet Auf, Cantata

I've titled this post in the manner that I have because it is my 140th post, and the Wachet Auf Cantata is BWV (pronounced bw-uh-vee) number 140.

I get to conduct a piece for chapel choir. It's soooo cool. And, it's in mixolydian! (Well, mostly it is, I think.) It's Gwyneth Walters' arrangement of "How Can I Keep from Singing," and it's sooo cool. It's SA(T)B, and my favorite part is the chorusy thing.
You know how sometimes little kids will sit there and sort of just sing to themselves, just nonsense music. JoyMusic. Well, this piece has this interlude thing between the verses that happens three times that's just like that. It's just la la la la and the altos have a g, and the baritones go: G-A-B-C-D-D-D-D-D-D-G-A-B-C-D-D-D-..., and the sopranos go: G-G-G-G-A-A-A-A-G-G-G-G-B-B-B-... and then everyone sings "How can I keep, how can I can I can I keep..." It's soo cool.
Did I mention the mixolydianness of it yet?

For those non-musicians among you, mixylodian is a mode, a type of scale. There are 7 modes, each corresponding to a white key on the piano, and each is what you get if you start on that key and go to the octave, only playing white keys. So if you go C-C' all on white key you get Ionian, and if you go A-A' you get aeolian, and if you go G-G' you get mixolydian, and so on. In other words, you take a major scale and b ^7 (read: flat, lower by half step or one piano key, scale degree seven).

Alrighty, time to nap or... something.