Key of A# Major

Everything the key of A# major contains: its scale, its seven diatonic chords, and its closest relatives.

The key of A# major is built on the A# major scale. Harmonizing that scale in thirds yields its seven diatonic chords: A# – Cm – Dm – D# – F – Gm – A°. Its relative minor — the key sharing exactly the same notes — is G minor, and its parallel minor is A# minor.