TPiano Adventures Theory Book 3B Students will enjoy composing tunes and harmonizing melodies using primary chords, matching motives and sequences, inversion triad studies and a fun review called The 12 Days of Music. The activities in the Theory Book 3B are educational and fun! The core series includes the Lesson Book, Performance Book, Technique & Artistry Book and the Theory Book. Use all four books for a complete program that students will love! Supplement the four core books with Popular Repertoire and Sightreading to strengthen acquired skills!