2c, 3a, 3b, 3c, 4a, 4b, 4c) that covers 44 different elements and spans Late Elementary to Advanced levels. It can be used as a supplement to any curriculum or in conjunction with any method book series. Book 4b (81 pages) covers Four-Note Diatonic Triads, Five-Note Seventh Chords, Double-Note Turns and Trills, and Diatonic Scales in Legato Thirds, in 4 Units. Each unit contains theoretical discussions of each element, so students understand what they are practicing. Most importantly, in all units there are 5-10 different preparatory exercises which help a student understand how to practice each element. There is also a checklist included at the end of every book so students can track progress and set tempo related goals.