The pieces are in three groups:

Sixteen unnamed pieces (folios 1-6 in treble parts, 1-5 verso in bass);

Pieces numbered to 25 (actually 23), composers named being Christopher Simpson and John Jenkins (folios 6 verso-19, 6 verso-18, 6-18);

Thirty-five pieces, possibly of French origin, complete only in the bass part (1-3 missing in first treble, and 1-11 in second treble), (folios 37 verso-47, 32 verso-39 verso, 33 verso-43 verso).