Book 4: Triads; Student Assignment; Harmonizing with Chords; Student Assignment; Passing and Neighboring Notes; Student Assignment; Triads in Arpeggio Form; Student Assignment; The Subdominant Triad; Student Assignment; Dominant Seventh Chord; Student Assignment; Melody Writing; Student Assignment; Melody Writing; Student Assignment; Melody Writing; Student Assignment; Harmonizing a Melody; Student Assignment; Review; Review; I-IV-V7 in Minor; Student Assignment; Recognizing Major Chords; Recognizing Minor Chords; Review; Review; Student Test; Student Test.