[Soneto XVII in PujolV].
This work is a parody fantasia based on Francesco da Milano (Ness nº 15). As Ness comments (private communication 18 Sep 94) That this and Francesco’s Fantasia Nº 13 (Valderrabano Soneto fol 92v—both identified by John Robinson—seem to be distillations of the Francesco ricercars as they come down in Italian sources, perhaps several removes from Francesco.”
The relationship is close:
Francesco #15 Valderrabano soneto
total bars: 63 total bars: 56
= 125 semibreves
1-12 4-25
16-26 27-45