ἀλλὰ μὴν καὶ ᾁδοντα δεῖ κιθαρίζειν ποτὲ πρὸς τὴν ᾠδὴν καὶ βαίνειν
does it mean that the singer had also to walk around while singing and playing the harp? I don’t think bainei can mean ‘dancing’.
ok, from further context in 108c it can be inferred that he takes baino and embaino as synonyms, and the latter has the connotation of dancing.