Tritone Chord Substitution

Shown in ii - V - I - VI Turnaround

Key	ii (tritone)	V (tritone)	I	VI (tritone)
C	Dm⁷ (A^bm⁷)	G⁷ (D^b7)	C	A^7alt (E^b7alt )
D^b	E^bm⁷ (Am⁷)	A^b7 (D⁷)	D^b	B^b7alt (E^7alt )
D	Em⁷ (B^bm⁷)	A⁷ (E^b7)	D	B^7alt (F^7alt )
E^b	Fm⁷ (Bm⁷)	B^b7 (E⁷)	E^b	C^7alt (G^b7alt )
E	F^#m⁷ (Cm⁷)	B⁷ (F⁷)	E	C^#7alt (G^7alt )
F	Gm⁷ (D^bm⁷)	C⁷ (G^b7)	F	D^7alt (A^b7alt )
G^b	A^bm⁷ (Dm⁷)	D^b7 (G⁷)	G^b	E^b7alt (A^7alt )
G	Am⁷ (E^bm⁷)	D⁷ (A^b7)	G	E^7alt (B^b7alt )
A^b	B^bm⁷ (Em⁷)	E^b7 (A⁷)	A^b	F^7alt (B^7alt )
A	Bm⁷ (Fm⁷)	E⁷ (B^b7)	A	F^#7alt (C^7alt )
B^b	Cm⁷ (G^bm⁷)	F⁷ (B⁷)	B^b	G^7alt (D^b7alt )
B	C^#m⁷ (Gm⁷)	F^#7 (C⁷)	B	G^#7alt (D^7alt )