τετράχορδος
From LSJ
ὃς ἂν βούληται τῆν γῆν κινῆσαι κινησάτω τὸ πρῶτον ἑαυτόν → let him that would move the world first move himself
English (LSJ)
ον, (χορδή)
A four-stringed, ὄργανον Ath.4.183a; λύρα Str.13.2.4. II Subst. -χορδον, τό, tetrachord, i.e. scale of four notes, comprising two tones and a half, Arist.Pr.922b8, Fr.47, Plu.2.1021e, etc.: metaph., (sc. παθῶν) Aristo Stoic.1.85, cf. Jul.Caes.315c.
