τό: const. with the following clause. Cf. τὸ εἰ βούλει 331 c, 1. 29. Similarly τό is used with the inf. as epexegesis of substs. Cf. Phaedo 92 a ἐάνπερ μείνῃ ἥδε ἡ οἴησις, τὸ ἁρμονίαν μὲν εἶναι ξύνθετον πρᾶγμα, 94 b εἰ ὀρθὴ ἡ ὑπόθεσις ἦν, τὸ ψυχὴν ἁρμονίαν εἶναι.
πρὸς τῷ εἶναι: besides being. Cf. Phaedr. 252 a πρὸς γὰρ τῷ σέβεσθαι ἰατρὸν εὕρηκε μόνον τῶν μεγίστων πόνων for besides his worship, he has found the only physician to heal his sharpest pangs, 270 a ὃ καὶ Περικλῆς πρὸς τῷ εὐφυὴς εἶναι ἐκτήσατο.
ἀνόμοια: pred., sc. ἐλέγοντο εἶναι.
μουσικῶς: the comparison of conflicting statements with discordant tones, and the reverse, is not uncommon. Cf. Phaedo, 92 c οὗτος οὖν σοι ὁ λόγος ἐκείνῳ πῶς ξυνᾴσεται; καὶ μὴν πρέπει γε εἴπερ τῳ ἄλλῳ λόγῳ ξυνῳδῷ εἶναι καὶ τῷ περὶ ἁρμονίας (and certainly, if any doctrine should be harmonious, that should be which relates to harmony), Lach. 188 d.
ἑνί: to this ἀφροσύνη corresponds in the following words; to ἕν, the noms. σοφία and σωφροσύνη, which are not ἕν, but πλείω. Plato therefore must have written πλείω, not the πλείοσι of the Mss.