The two volumes contain 69 works and movements altogether, in chronological order: in Volume 1, from the Renaissance to Beethoven, and in Volume 2 from Weber up to the present day. Most of them are transcriptions of instrumental or choral works, the easiest ones can be played after just a few months of clarinet study. The supplementary parts supplied enable the clarinet (or bass clarinet) in the two outer parts to be replaced by a non-transposing instrument: flute, oboe or violin, and bassoon or cello.