Comment #2 on issue 2807 by [email protected]: Alternative to setting beatStructure
http://code.google.com/p/lilypond/issues/detail?id=2807
David said: "The one thing that I am unhappy with is that we have a separate \compoundTime command. I don't have a good idea for folding both of them into a single command, though. Not without sacrificing the beatStructure argument (unless we do really annoying things like making it negative, or using a vector, or using a "2+3" string). "But while there is no different syntax in sight, there is no real excuse for not documenting the current one."
