3♯

3♯ indicates a key signature with 3 sharps. In standard music notation, this is shown at the beginning of the staff, indicating which notes are consistently altered throughout the piece. A common reference key for this signature is A Major.

Keys and modes written with this key signature include A Blues, A Major, B Dorian, D Lydian, E Mixolydian, F♯ Minor.

Below is a list of songs written using this key signature.