A calliope is a musical instrument that produces sound by sending a gas, originally steam or, more recently, compressed air, through large whistles—originally locomotive whistles. A calliope is typically very loud. Even some small calliopes are audible for miles. There is no way to vary tone or loudness.

What does calliope mean today?

With a name literally meaning "beautiful-voiced" (from kallos, meaning "beauty," and ops, meaning "voice"), Calliope was the most prominent of the Muses-the nine sister goddesses who in Greek mythology presided over poetry, song, and the arts and sciences.

What is calliope the goddess of?

Calliope, also spelled Kalliope, in Greek mythology, according to Hesiod's Theogony, foremost of the nine Muses; she was later called the patron of epic poetry. At the behest of Zeus, the king of the gods, she judged the dispute between the goddesses Aphrodite and Persephone over Adonis.