Kaganu is a narrow drum or membranophone. It is about two feet tall, its head is about three inches in diameter and it is open at the bottom. Although kaganu is known as a supporting drum, it does not respond to calls from the lead drummer like the other supporting drums: kidi and sogo. Like axatse and gankogui this instrument plays a continuous rhythm throughout Atsia. The main function of kaganu is to give some color or flavor to the music. The basic rhythm that kaganu plays during Atsiã - as well as many other Ewe pieces - is demonstrated above.