Plato, Laws 812b

ὀρθῶς. ἆρʼ οὖν οὐ μετὰ τὸν γραμματιστὴν ὁ κιθαριστὴς ἡμῖν προσρητέος; τί μήν; τοῖς κιθαρισταῖς μὲν τοίνυν ἡμᾶς δοκῶ τῶν ἔμπροσθεν λόγων ἀναμνησθέντας τὸ προσῆκον νεῖμαι τῆς τε διδασκαλίας ἅμα καὶ πάσης τῆς περὶ τὰ τοιαῦτα παιδεύσεως. ποίων δὴ πέρι λέγεις; ἔφαμεν, οἶμαι, τοὺς τοῦ Διονύσου τοὺς ἑξηκοντούτας ᾠδοὺς διαφερόντως εὐαισθήτους δεῖν γεγονέναι περί

Very true. After the writing-master, must we not address the lyre-master next? Certainly. When assigning to the lyre-masters their proper duties in regard to the teaching and general training in these subjects, we must, as I think, bear in mind our previous declarations. Declarations about what? We said, I fancy, that the sixty-year-old singers of hymns to Dionysus ought to be exceptionally keen of perception