Chords in F# Aeolian
F# Aeolian is built from the notes F#, G#, A, B, C#, D and E. Its scale carries 3 sharps. Harmonising that scale in thirds gives seven chords — 3 majors, 3 minors and 1 diminished — starting on F#m as the i. The chord on the fifth degree is C#m rather than a major V, so F# Aeolian has no leading tone and resolves by step and colour instead of by dominant pull — the sound that separates it from a plain F# major.
Beyond those seven, F# Aeolian commonly borrows F# (I), G#m (ii), A#m (iii), B (IV) and C# (V) from the parallel major — the mixture chords that give a progression somewhere unexpected to go.
The seven chords
Extended to four notes each, the same seven degrees give F#m7, G#m7b5, Amaj7, Bm7, C#m7, Dmaj7, E7.
Borrowed chords
Capo 2 and play E Aeolian shapes to sound F# Aeolian.
All eight capo positions for F# Aeolian →