Faber Piano Adventures ). The Hallmark Of The Revised Level 3B Theory Book Is The Synthesis Of 3B Concepts: Major And Minor Scales, Triads And Chord Inversions, And 16Th-Note Rhythms Are Reinforced With Writing, Composing, Sightreading, And Ear-Training Exercises. Students Will Enjoy Composing A Tune For A Lead Sheet, Harmonizing Melodies, Identifying Triad Inversions, And Creating Their Own 16Th-Note Rhythms In Various Time Signatures.