Howard Fergusun, R.O. Morris

124 short excerpts using a mixture of treble, alto, tenor and bass clefs and various common transpositions. The book concentrates on diatonic harmonic study (including diminished sevenths) and harmonic counterpoint in up to three parts. The exercises train students to take in many staves at once, to see where the principal melody is, to understand harmonies and modulations, to read various clefs, and transpose as necessary.