Concentos quos natura hominis modulari potest, graece quae synphoniae dicuntur, sunt sex: diatessaron, diapente, diapason, et disdiatessaron, et disdiapente, et disdiapason.
The concords (in Greek symphoniae) which the human voice can modulate are six: diatessaron (fourth); diapente (fifth); diapason (octave); disdiatessaron (octave and fourth); disdiapente (octave and fifth); disdiapason (two octaves).
final_alignments\Vitruvius_Architecture_Book_5.json