A fourth work published in 1929 called Setting Up Drills, a short collection of 38 exercises in four groups meant to strengthen the lips and be played for half an hour each day, is sometimes considered part of the series.

It includes the author's discussions of the positioning of the mouthpiece on the lips, tone, breathing, musical terms, 30 graded lessons, and 116 exercises.

The remaining 51 exercises in the last sixteen lessons introduce sixteenth notes and triplets while visiting all major keys in order of increasing number of flats and sharps.

At the end of the thirtieth lesson, there is a 63-measure comprehensive study in 34 time ( = 80) and examples of Clarke's exercises for extended range.

Carl Fischer revised and applied a new copyright to the work in 1984, simplifying the text and adding German and French translations alongside which have been criticized for losing some of the author's philosophy for playing brass.