Steam organs, also known as calliopes, are an interesting musical instrument used in various events, circuses, and parades. In terms of synonyms, steam organs can also be referred to as steam pianos, steam whistles, steam organs, steam sirens, steam trumpets, and steam flutes. Calliope, a word derived from the Greek mythological muse of epic poetry, is also a common synonym for steam organs. Regardless of their name, steam organs have a distinct sound due to the high-pressure steam being emitted through the instrument's pipes. These musical instruments are still popular today and continue to provide entertainment and joy to audiences around the world.