$19.99 Harmonic and Melodic Equivalence V9B Trichord Pair quantity Add to cart Category: Bundles Description Description Digital Downloads are Non-Refundable Related products Get the Bundle of all Four Books in this Series! $49.99 Add to cart 013 Hexatonic Études: Pitch Class Set Exercises for Dominant 7th Key Center $24.99 Add to cart Rhythms Volume 12: Duple and Tuplets $14.99 Add to cart Rhythms Volume 6 Quintuplets $14.99 Add to cart