The Circle of Fifths

The map of all 12 keys — made useful.

• 1
  Reading the circle

  8 min
• 2
  Key signatures for all 12 keys

  9 min
• 3
  Find I–IV–V instantly

  7 min
• 4
  Relative minors (the inner ring)

  6 min
• 5
  Modulation to neighbor keys

  8 min
• 6
  Use the circle to harmonize a melody

  9 min