Dictionary: A Major Scale

From this three-sharp scale, we can derive the modes A Ionian, B Dorian, C# Phrygian, D Lydian, E Mixolydian, F# Aeolian, and G# Locrian.  In the table below, you'll find accompaniment-friendly triads to the left, and chords more suitable for transition (if you're adventurous enough) to the right:

A	F#m	G#dim	Aaug
D	Bm	Dm	Bdim
E	C#m	C#	E#dim