εὐηχής
From LSJ
Μή, φίλα ψυχά, βίον ἀθάνατον σπεῦδε, τὰν δ' ἔμπρακτον ἄντλει μαχανάν → Oh! my soul do not aspire to eternal life, but exhaust the limits of the possible
English (LSJ)
Dor. εὐᾱχης, ές,
A well-sounding, tuneful, ὕμνος Pi.P.2.14; ὑμέναιος Call.Del.296; ὄργανον Plu.2.437d; euphonious, Phld. Po.2.3.