Hauptquelle · Lex. musicum Latinum
regula harmonica
regula harmonica Bezeichnung für die Monochord-Teilung (als Anweisung zur Berechnung des Tonsystems) — term that designates the division of the monochord (as instruction for the computation of the tonal system) [s.VI] LmL Boeth. mus. 5, 3 p. 354, 21: Quid sit armonica regula vel quam intentionem armonicae Pythagorei vel Aristoxenus vel Ptolomaeus esse dixerunt. Huiusmodi igitur instrumentum, in quo rationis adhibito modo sonorum differentiae perquiruntur, vocatur armonica regula ( inde LmL Hier. Mor. 1, 67 (p. 9). LmL Iac. Leod. comp. 1, 4, 8. LmL Comm. Boeth. II p. 342, 19-30. LmL Ugol. Urb. …