Terpsichore, Antonio Canova 1816, Cleveland Museum of Art (Source). Canova was asked to produce a sculpture of Lucien Bonaparte, a sister-in-law of Napoleon Bonaparte but after the commision was canceled Canova with some modifications changed the sculpture into the Muse Terpsichore.
In Greek mythology, Terpsichore (Τερψιχόρη ,"delight of dancing") was one of the nine Muses, ruling over dance and the dramatic chorus. She is usually depicted sitting down, holding a lyre.
Terpsichore by John Walsh, 1771. She is portrayed holding an Aeolian harp and what might be a pair of dividers or a plectrum.
She is sometimes said to be the mother of the Sirens by Achelous.
Her name comes from the Greek words τέρπεω "delight" and χoρός "dance".
Asteroid 81 Terpsichore