Fux's Gradus ad Parnassum is something you can find. A lot of the partimento stuff was practical in nature, and consisted of some rules and several exercises.

Fux's Gradus ad Parnassum is something you can find. A lot of the partimento stuff was practical in nature, and consisted of some rules and several exercises. A great online source on Partimento and historical solfege: https://partimenti.org/ https://partimenti.org/