The Seventh Dragon: The Riddle of Equal Temperament
by: Anita T. Sullivan

Hardcover. Lake Oswego OR, Metamorphous Press, 1st, 1985, Book: Very Good, Dust Jacket: Very Good, Hardcover in a bright dust jacket, b&w illustrations, 104 pages. A veteran piano tuner presents a non-technical, literary view of the quixotic tuning system used on keyboard instruments for hundreds of years. Focuses on the "comma", which is the pitch difference by which (9/8)^12 > (2/1), discusses its history, its importance in piano tuning, and philosophically what it all means. Winner of the Western States Book Award for creative nonfiction in 1986.