Tritone substitutions in E major

Every dominant in E major, and its substitute

• B7V7→E

  F7subV7→E

  F7 substitutes for B7, the dominant of E major. They share the same tritone, so the bass can fall a semitone instead of a fifth. Shared notes: D♯ and A in B7, E♭ and A in F7.

• C7V7/ii→Fm

  G7subV7/ii→Fm

  G7 substitutes for C♯7, the dominant of F♯ minor. They share the same tritone, so the bass can fall a semitone instead of a fifth. Shared notes: E♯ and B in C♯7, F and B in G7.

• D7V7/iii→Gm

  A7subV7/iii→Gm

  A7 substitutes for D♯7, the dominant of G♯ minor. They share the same tritone, so the bass can fall a semitone instead of a fifth. Shared notes: F♯♯ and C♯ in D♯7, G and C♯ in A7.

• E7V7/IV→A

  A7subV7/IV→A

  A♯7 substitutes for E7, the dominant of A major. They share the same tritone, so the bass can fall a semitone instead of a fifth. Shared notes: G♯ and D in E7, G♯ and C♯♯ in A♯7.

• F7V7/V→B

  C7subV7/V→B

  C7 substitutes for F♯7, the dominant of B major. They share the same tritone, so the bass can fall a semitone instead of a fifth. Shared notes: A♯ and E in F♯7, B♭ and E in C7.

• G7V7/vi→Cm

  D7subV7/vi→Cm

  D7 substitutes for G♯7, the dominant of C♯ minor. They share the same tritone, so the bass can fall a semitone instead of a fifth. Shared notes: B♯ and F♯ in G♯7, C and F♯ in D7.