Link on Ottaviano Petrucci “He was born in Fossombrone. Around 1490 he went to Venice to learn the art of printing. [...] Petrucci's later work was extraordina

Link on Ottaviano Petrucci “He was born in Fossombrone. Around 1490 he went to Venice to learn the art of printing. [...] Petrucci's later work was extraordinary for the complexity of his white mensural notation and the smallness of his font, and he did in fact print the first book of polyphony using movable type.“ https://en.wikipedia.org/wiki/Ottaviano_Petrucci https://en.wikipedia.org/wiki/Ottaviano_Petrucci