The sipsi (pronounced [sipˈsi]) is a clarinet-like, single-reed instrument used mainly in folk music and native to the Aegean region of Greece and Turkey. The word sipsi is possibly onomatopoeic. In ancient Greece, it was known as kalamavlos (καλάμαυλος), meaning cane-flute. The sipsi can be made of bone, wood, or reed, though the reed variant is most common. Its size varies from region to region, but it generally contains five finger holes in the front, and one finger hole in the back.