“I once heard someone singing

Two souls were passing on, and one said to the other, where must we go?*

Some time later, I heard another person singing the tune and the rhythm to which Two souls were passing on was sung, but the words and the meaning were not the ones from before. Instead they were

The First Reason leads me and again downward brings me.**

Like I said, both this song and the earlier song were sung to the same rhythm. When [my soul] had been moved here and there by [this] rhythm, I remembered the place I had first heard it, then [I remembered] the man who sang it, and then the [lyrics] ‘Two souls were passing on’ and the rest. There are, then, certain traces in the soul which follow one another by necessity, in which it is impossible that [the memories] that come next will not follow once [the soul] is set in motion.”

πάλιν ἤκουσά του ᾄδοντος “δύο ψυχαὶ ἐξήρχοντο, καὶ μία πρὸς ἄλλην ἔλεγε, ποῖ πορευτέον”.* μετὰ δέ τινας χρόνους ἤκουσα ἄλλου ᾄδοντος τὸ μὲν μέλος καὶ τὸν ῥυθμὸν ἐκεῖνον, καθ' ὃν ᾔδετο τὸ “δύο ψυχαὶ ἐξήρχοντο”, ἡ δὲ λέξις καὶ ἡ ἔννοια οὐκ ἐκείνη, ἀλλ' ἦν ὅτι “ὁ νοῦς ὁ πρῶτος ἄγει με καὶ πάλιν κάτω φέρει”. ᾔδετο οὖν, ὥσπερ εἶπον, τῷ αὐτῷ ῥυθμῷ καὶ ταῦτα καὶ ἐκεῖνα· ἀφ' οὗ ῥυθμοῦ πρῶτον ἀνεμνήσθην κινηθεὶς ὧδε κἀκεῖσε τὸν τόπον, ἐν ᾧ ἤκουσα τοῦ ῥυθμοῦ, εἶτα τὸν ᾄδοντα ἄνθρωπον, καὶ τότε τὸ “δύο ψυχαὶ ἐξήρχοντο” καὶ τὰ ἑξῆς. εἰσὶ μὲν οὖν τύποι τινὲς ἐξ ἀνάγκης ἀκολουθοῦντες ἀλλήλοις, ἐν οἷς ἀδύνατόν ἐστι τούτου κινηθέντος μὴ ἕπεσθαι καὶ τὸν ἑξῆς.

Michael of Ephesus, In parva naturalia commentaria, CAG 22.1, 24,23-25,3 Wendland

*This song does not come up with a TLG search, except for the paraphrase in “Themistius” (Sophonias?), in Parva Naturalia, CAG 5.6 8,25.

**I haven’t found this song in a TLG search either, except for the “Themistius” paraphrase: in PN CAG 5.6 8,27-8.