"And Polyhymnia lays aside her psalms:
The fair Thalia smiles with brighter grace,
And gay Terpsichore suspends her pace."
H.P. Lovecraft, R. Kleiner, Laureatus, In Heliconem
"TERPSIKHORE (Terpsichore) was one of the nine Mousai (Muses), the goddesses of music, song and dance. In the classical era, when the Mousai were assigned specific literary and artistic spheres, Terpsikhore was named Muse of choral song and dancing."
Aaron J. Atsma, The Theoi Project: Greek Mythology