medicine of four ingredients; (in music) a fourth
Latin word, found 20 times in the texts on Socratos.
Vitruvius, On Architecture 1.1.9: … ex discrimine, quae Graeci appellant, ad symphonias musicas sive concentus componuntur divisa in circinatione diatessaron et diapente et diapason ad disdiapason, uti vox scaenici, sonitu conveniens in dispositionibus tactu cum offe …
All forms of diatessaron