I've been working on the transposition of the B-flat and what it sounds like on the other side of the Big Black Hole. Best I can come with is that it's in alto clef, and the note is H# (there's a multidimensional problem here, in that in passing through the Blues Event Horizon of within the Big Black Hole the note becomes "twisted", sort of Klein Bottle-ish, but you can do the math of it yourself and see what I mean).

And I've HEARD the music of spheres, the notes generated by all the black holes and wormholes and colliding galaxies and all that stuff. You want to know what it sound like, since each one is producing just one note? I'll tell ya what it sounds like. It sound like a humungeous orchestra tuning up, that's what it sounds like, and all of the instruments are waaaaaaaaaaaaaay out of tune. Now you know: the Universe is out of whack, Time is out of joint, and Bush is in the White House. At least, Bush doesn't play saxophone.