From the Publisher
The final part in this excellent 3 book series takes the student further into the subject of harmony. Chapters on secondary 7th chords chords of the 9th 11th and 13th chromatic chords and Appendices discussing styles and form etc.
Difficulty guide: 7-9
Difficulty level, roughly compared to ABRSM exam grades. 0 is total beginner, 9 is advanced (beyond grade 8).