Boethius, -524, Gregori, Gregorio de', active 1480-1528, printer, Gregori, Giovanni de', active 15th century, printer, Bates, Joshua, 1788-1864, former owner · [Venice: Giovanni and Gregorio de' Gregori, 1492] · leaf 36
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Arithmetic · Music theory
Internet Archive · Boston Public Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Opera], leaf 36](https://img.insideoutlibrary.com/img/1024/ia-arithmeticageome00boet-36-2.webp)
![An illustration from Cantus monastici formula noviter impressa : ac in melius redacta : cui que deerant adjuncta : que vero superflua videbantur adempta sunt: cum tono lame[n]tationis hieremie prophete & aliquibus aliis cantibus mensuratis ipsi tempori co[n]gruis (1535)](https://img.insideoutlibrary.com/img/200/ia-cantusmonasticif00cath_0-113-0.webp)
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