syntono-|ˈsɪntənəʊ|combining form repr.Gr. σύντονος (see syntonous), as in Syntono-Lydianadj.[cf.Gr. συντονολυδιστί adv. (Plato)], an epithet of the ordinary (diatonic) Lydian scale in ancient Greek music.1801Busby Dict.Mus., Syntono Lydian, the name of one of the mode in the ancient music. Plato tells us, that the mixo-lydian and syntono-lydian modes were peculiar to tears.1875Stainer & Barrett Dict.Mus. Terms 209 There was no such enharmonic scale as Syntono-Lydian, nor could such a prefix as Syntono be applied to any enharmonic scale whatever.Ibid. 210 The Syntono-Lydian of the manuscript [of Aristides Quintilianus]..is clearly a mistake for Hypo-Lydian... The prefix of ‘Syntono’ is usually unnecessary, because it means the ordinary Lydian,..but Plato employs it, because he wishes to distinguish it from the Malakon (or laxly tuned) Lydian.