I also have an edition of The Well Tempered Clavier (Dover, 19) that has a number of pieces in /16 time signatures From Book 1, Prelude 13 is written in 12/16, Prelude 15 is 24/16 (compound 8 not one you see too often!)Introduction To Time Signatures Time signatures tell you how many and what kind of notes per measure there are The number on top (or on the left) is the number of notes per measure, and the bottom number, or the number on the right, is what kind of note Let us explain further Let us take for example the most popular time signature, 4/4 Time signature posted in Guitar (Updated Even MORE guitar lessons added!) John Petrucci My Idol!
Compound Time Signatures