Major	I	II	III	IV	V	VI	VII
minor	i	ii	iii	iv	v	vi	vii
Major7	I7	II7	III7	IV7	V7	VI7	VII7
minor7	i7	ii7	iii7	iv7	v7	vi7	vii7
Progression
Chords
Key	C	D	E	F	G	A	B
Clear