« Petites reigles pour l'accompagnement, que M. Buterne m'a donné par confience et dont il fait grand cas et qu'il se reserve »
A handwritten French manuscript of thorough-bass rules by Jean-Baptiste Buterne, dated 1700, copied as a private teaching treatise for accompanists. The page shows dense pen-and-ink musical staves with figured-bass numerals, examples, and crossed-out corrections, which a designer could use as a reference for hand-annotated notation and historic manuscript texture.
