Athenaeus, Sophists at Dinner 1.20e = T 28 Radt
Σοφοκλῆς δὲ πρὸς τῶι καλὸς γεγενῆσθαι τὴν ὥραν ἦν καὶ ὀρχηστικὴν δεδιδαγμένος καὶ μουσικὴν ἔτι παῖς ὢν παρὰ Λάμπρωι. μετὰ γοῦν τὴν ἐν Σαλαμῖνι ναυμαχίαν περὶ τρόπαιον γυμνὸς ἀληλιμμένος ἐχόρευσε μετὰ λύρας· οἳ δὲ ἐν ἱματίωι φασί . καὶ τὸν Θάμυριν διδάσκων αὐτὸς ἐκιθάρισεν· ἄκρως δὲ ἐσφαίρισεν, ὅτε τὴν Ναυσικάαν καθῆκε .
Sophocles, as well as being handsome in the flower of his youth, was also taught dance and music by Lampron when he was still a boy. After the sea battle in Salamis, for example, he danced with his lyre around the victory monument naked and anointed with oil. Some say he wore a cloak. When he produced the Thamyris, he played the lyre himself. He also played ball skilfully when he staged the Nausicaa.