Harmonic Overlay chart

Here is the harmonic overlay chart. Once you have "keyed" your records you can use this chart to find compatible harmonies.

Major keys
Key of song	Tonic	Perfect fourth	Perfect fifth	Relative minor
C	C	F	G	Am
Db	Db	Gb	Ab	Bbm
D	D	G	A	Bm
Eb	Eb	Ab	Bb	Cm
E	E	A	B	Dbm
F	F	Bb	C	Dm
Gb	Gb	B	Db	Ebm
G	G	C	D	Em
Ab	Ab	Db	Eb	Fm
A	A	D	E	Gbm
Bb	Bb	Eb	F	Gm
B	B	E	Gb	Abm

Minor keys
Key of song	Tonic	Perfect fourth	Perfect fifth	Relative major
Cm	Cm	Fm	Gm	Eb
Dbm	Dbm	Gbm	Abm	E
Dm	Dm	Gm	Am	F
Ebm	Ebm	Abm	Bbm	Gb
Em	Em	Am	Bm	G
Fm	Fm	Bbm	Cm	Ab
Gbm	Gbm	Bm	Dbm	A
Gm	Gm	Cm	Dm	Bb
Abm	Abm	Dbm	Ebm	B
Am	Am	Dm	Em	C
Bbm	Bbm	Ebm	Fm	Dd
Bm	Bm	Em	Gbm	D

There is alternative way of finding compatible harmonies, try using the cromatic scale. It can be a much quicker and easier way of learning how to match harmonies.

Harmonic overlay chart