Learn how the Circle of Fifths relates to the whole tone scale. Note: to enjoy this video, you'll need to understand the concepts explained in Park's three-part Chromatic Scales series.
Learn Park's technique for understanding and practicing the circle of fifths using his sharp pedal method. (To enjoy this video, you'll need an understanding of key signatures and enharmonics.)
Learn Bridget Kibbey's method for tuning by ear using the circle of fifths.