Secondary Chords, Keys, Modes and Tritone Substitutions by /u/hittingal

	A	B	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T
1	Secondary Chords
2				Tonic		Supertonic		Mediant		Subdominant		Dominant		Submediant		Leading Tone
3	Tonic			I	C	ii	Dm	iii	Em	IV	F	V	G	vi	Am	vii°	B°
4	Secondary Supertonic			ii	Dm	ii/ii	Em9	ii/iii	F#m	ii/IV	Gm	ii/ V	Am13	ii/vi	Bm	ii/vii°	C#m
5	Secondary Mediant			iii	Em	iii/ii	F#m	iii/iii	G#m	iii/IV	Amb9	iii/V	Bm	iii/vi	C#m	iii/vii°	D#m
6	Secondary Subdominant			IV	F	IV/ii	Gmaj7	IV/iii	A	IV/IV	A#	IV/V	Cmaj11	IV/vi	D	IV/vii°	E
7	Secondary Dominant			V	G	V/ii	A	V/iii	B	V/IV	C7	V/V	D	V/vi	E	V/vii°	F#
8	Secondary Submediant			vi	Am	vi/ii	Bm	vi/iii	C#m	vi/IV	Dm13	vi/V	Em9	vi/vi	F#m	vi/vii°	G#m
9	Secondary Leading Tone			vii°	B°	vii°/ii	C#°	vii°/iii	D#°	vii°/IV	E°	vii°/V	F#°	vii°/vi	G#°	vii°/vii°	A#°
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13
14	Keys				Modal Intervals
15	Key	Sharps/Flats	Relative Minor		Mode		Scale Degree	Intervals with respect to the tonic
16	Key	Sharps/Flats	Relative Minor		Mode		Scale Degree	unison	second	third	fourth		fifth		sixth	seventh	octave
17	C		Am		Lydian		IV	perfect	major	major	augmented		perfect		major	major	perfect
18	G	F#	Em		Ionian		I				perfect					major
19	D	F#, C#	Bm		Mixolydian		V									minor
20	A	F#, C#, G#	F#m		Dorian		ii			minor
21	E	F#, C#, G#, D#	C#m		Aeolian		iv								minor
22	B	F#, C#, G#, D#, A#	G#m		Phrygian		iii		minor
23	Cb	Bb, Eb, Ab, Db, Gb, Cb, Fb	Abm		Locrian		vii°		minor				diminished
24	F#	F#, C#, G#, D#, A#, E#	D#m
25	Gb	Bb, Eb, Ab, Db, Gb, Cb	Ebm
26	C#	F#, C#, G#, D#, A#, E# B#	A#m
27	Db	Bb, Eb, Ab, Db, Gb	Bbm		Tritone Substitutions
28	Ab	Bb, Eb, Ab, Db	Fm		Tritone Substitutions
29	Eb	Bb, Eb, Ab	Cm		I	C	G	D	A	E	B	F#	C#	G#	D#	A#	F
30	Bb	Bb, Eb	Gm		V7	G7	D7	A7	E7	B7	F#7	C#7	G#7	D#7	A#7	F7	C7
31	F	Bb	Dm		bII7	C#7	G#7	D#7	A#7	F7	C7	G7	D7	A7	E7	B7	F#7