Ch13 / GM, Gm, Gaug, Gdim, GM7, Gm7, G7, Gm7(b5), Gdim7, ...

Ch13 / GM, Gm, Gaug, Gdim, GM7, Gm7, G7, Gm7(b5), Gdim7, ...
is a song by
Michael Pilhofer & Holly Day
it was released on
Music Theory for Dummies