Pseudo-Plutarch, De musica
Goodwin, Ed.

But some will say, Did the ancients invent nothing themselves? Yes, say I, they did invent, but their inventions were grave and decent. For they who have written the history of music attribute to Terpander the addition of the Dorian nete, which before was not in use. Even the whole Mixolydian mood is a new invention. Such were also the Orthian manner of melody with Orthian rhythms, and also the Trochaeus Semantus.¹ And if we believe Pindar, Terpander was the inventor of the Scolion (or roundelay). Archilochus also invented the rhythmic composition of the iambic trimeter, the change to rhythms of different character, the melo-dramatic delivery,² and the [p. 123] accompaniment proper to each of these. He is also presumed to be the author of epodes, tetrameters, the Cretic and the prosodiac rhythms, and the augmentation of the heroic verse. Some make him author also of the elegiac measure, as likewise of the extending the iambic to the paeon epibatus, the prolonged and heroic to the prosodiac and Cretic. And Archilochus is first said to have taught how iambics could be partly recited to the stroke of the lyre and partly sung; from him the tragedians learned it, and from them Crexus took it, and made use of it in dithyrambics. It is thought that he invented also playing on the lyre at intervals in the song, whereas the ancients played only during the singing.