The key of A Mixolydian has a key signature of 2 sharps (F#, and C#). The A Mixolydian scale has the notes A, B, C#, D, E, F#, and G. It is the most popular key among Mixolydian keys and the 25th most popular among all keys. The A Mixolydian scale is similar to the A Major scale except that its 7th note (G) is a half step lower. Mixolydian chord progressions are heavily featured in many genres of music like classic rock, which relies on the major chord built on the 7th scale degree. For chord progressions, statistics, and tendencies, view this key in Hooktheory Trends