F sharp in A major and in A melodic minor going up, and F natural in A natural minor, A harmonic minor, and A melodic minor going down.
The submediant, the sixth degree of the G major scale, is E.E natural
Submediant
B
D flat
The submediant - which is the note a relative minor scale begins on
B major's submediant note is g#
The submediant, the sixth degree of the G major scale, is E.E natural
E
Submediant
A or VI or 6
B
D flat
G Major
The submediant - which is the note a relative minor scale begins on
The tonic, the submediant and the dominant (1, 3 and 5).
The chords BVI, BVII, and I in a major key are related as the submediant, subtonic, and tonic chords respectively. They create a sense of resolution and stability in the key, with the submediant and subtonic chords leading to the tonic chord.
An augmented sixth chord is a chord containing an lowered submediant and a raised subdominant scale degree.