[CM] cmn factorize

[Bill Schottstaedt]

But your point about the 31ths comes up even when the experts are
trying to make this all logical and easy -- Read's book, if I remember
right, gets tangled up in 11ths.  I've seen many different choices
in actual music.  As I wrote cmn, it really dawned on me how illogical
music notation is; its real task is to communicate between composer
and player (or reader anyway), and there you constantly hit questions
of expectations and clarity, etc -- I should write a book.