Boethius, De institutione arithmetica libri duo · De institutione musica libri quinque, ed. Gottfried Friedlein (Leipzig: Teubner, 1867) — read from page images, with the critical apparatus separated from the text
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p. 9899. Ee o | o o o o5 10 B tres toni C Á diatessaron | apot. - MN o —-fi ww Quod si idem spatium ad gravem sonum velimus efficere, fit hoc modo: Sit sonus -À- Intendo semitonium minus, id quod est -AD-, remitto ab -D- tonum eum, qui est -DE- 5 Erit igitur -AE- ea, quam requirimus, apotome. - Apot. s. E EY D | | | | | | | tonus E A Sit propositum ad acutam partem comma sumere. Sit sonus -Á- Intendo apotomen -AB., remitto semitonium minus -BC- Et quoniam semitonium minus apotome minus 10 est commate, comma erit -CÀ. | QQL'"UEEEEEERE ' Apot. B CA
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