Muses were daughters of Mnemosyne and Zeus, or, to other versions, daughters of Harmony, or of Uranus and Ge (Heaven and Earth). From the classical period the number of Muses was standardized to nine, and the following list was generally accepted: Calliope, the Muse of epic poetry; Clio, the Muse of history; Polyhymnia, the Muse of mime; Euterpe, the Muse of flute; Terpsichore, the Muse of light verse and dance; Erato, the muse of lyric choral poetry; Melpomene, the Muse of tradegy; Thalia, the Muse of comedy; Urania, the muse of astronomy.
See: Francesco del Cossa or Angelo Macagnini. The Muse Polyhymnia.
Filippino Lippi Allegory of Music (The Muse Erato).
Lorenzo Lotto Sleeping Apollo, Muses and Fama.
Nicolas Poussin. Apollo and Muses, Melpomene, Erato, and Polymnia.