It may even be that this sense of Harmonia was connected with the use for the Enharmonic genus.
You speak of Cadmus and Harmonia; but is not your case the opposite of theirs?
He married Harmonia at the lake Tritonis; and is said to have founded in that part of the world no less.
After a while he married Harmonia, the beautiful daughter of Mars.
In Aristoxenus and his school we find tonos, and in later writers tropos, but not Harmonia.
Cadmus and his wife Harmonia were by Zeus converted into serpents and removed to Elysium.
I come because it was you whom Zeus sent to watch over Cadmus and Harmonia when their dread and comfortable change came over them.
Cadmus is said to have married Harmonia, daughter of Ares, again a fictitious name for a Thracian maiden.
Kadmos and Harmonia become serpents, and are taken into heaven by the gods.
Harmonia, beholding it, prayed the gods to let her share his fate.