$9.99 Pitch Class Set Exercises: Trichord Sequence 2 exercises for pitch class set 013679 TWO quantity Add to cart Category: Instrumentalists Description Description Digital Downloads are Non-Refundable Related products Rhythms Volume Two Digital Copy $19.99 Add to cart Jam Tracks Series Bundle $59.99 Add to cart Doing Time Rhythm Series Bundle $34.99 Add to cart Doing Time with the Blues Volume One $13.99 Add to cart