Muses (sacred poetry) is often seen with a pensive expression; Terpsichore (choral dance and song) is often seen dancing and carrying a lyre; Thalia (comedy) is often seen with a comic mask; and Urania (astronomy) carries a pair of compasses and the celestial globe. Greek "mousa" is a common noun as well as a type of goddess: it literally means "art" or "poetry". According to Pindar, to "carry a "mousa"" is "to excel in the arts". The word derives from the Indo-European root "men-", which is also the source of Greek "Mnemosyne" and "mania", English "mind", "mental" and "monitor", Sanskrit "mantra"
Nine Muses (group) and Keumjo for a summer comeback. On October 4, 2016, the agency announced that Hyuna had graduate from the group after six years of activity due to the expiration of her contract. Nine Muses remained as a four-member group due to Sungah taking hiatus to pursue her work as a disk jockey. The group released their sixth extended play "Muses Diary Part. 2: Identity" on June 19, 2017. It was the second release of the "Muses Diary" series from their debut album under Nine Muses A. It charted on Gaon Album Charts at number 5 and at number 15 on