What is true of it
C9 is C, E, G, B♭ and D — 1, 3, 5, b7 and 9 counted from C.
On an instrument that cannot reach all 5, the 5 and 1 go first, in that order.
C9 is C, E, G, B♭ and D — 1, 3, 5, b7 and 9 counted from C.
On an instrument that cannot reach all 5, the 5 and 1 go first, in that order.