ἰσό-τονος · iso-tonos — LSJ
pulling evenly
pulling evenly, βρόχος Gal. 18(1).351, Paul.Aeg. 6.102.
II bearing the same accent
bearing the same accent, Hermog. Id. 1.12.
2 of level (unvarying) pitch, in unison
in Music, of level (unvarying) pitch, Ptol. Harm. 1.4; but, in unison, ib. 7, 2.1.
III equal, even, equally
generally, equal, even, ἰ. τῇ συγκρίσει τοῦ χρώματος Dsc. 5.123. Adv. -νως equally, θυμιᾶσθαι Id. 68.6.