AB Guide to Music Theory, Part II provides an introduction to the basic elements in harmony and musical structure. It includes separate chapters on voices, string instruments, woodwind and brass instruments, percussions and keyboard instruments, and instruments in combination. It also covers non-harmony notes, tonal harmony and chromatic chords, and musical structure. It is an invaluable support material for Grades 6 to 8 of the ABRSM Theory of Music syllabus.