Musictheory - The Circle of Fifths
The circle of fifths is a way of organizing the 12chromatic pitches as a sequence of perfect fifths. If C is chosen as a starting point, the sequence is: C, G, D, A, E, B (=C♭), F♯ (=G♭), C♯ (=D♭), A♭, E♭, B♭, F. Continuing the pattern from F returns the sequence to its starting point of C. This order places the most closely related key signature adjacent to one another. It is usually illustrated in the form of a circle.
