Biittso Ist'into and Worada Gebiro perform five lyre songs. Biittso and Worada play the lyre alternately. The first file is a solo performance of an autobiographical song in the c'aaggo c'alti rhythm by Biittso. The second file is a solo performance of a autobiographical song in the zari woysa ('lowland flute') by Worada. Next Biittso and Worada perform together the sibts'ire-song and the Baskeet woysa-song ('Baskeet flute'), Bittso leads the song, Worada replies and claps the rhythm. The last file shows a performance of a lyre song in the aakkwase-rhythm by Worada. The two photos linked to this session show (on photo 5227.jpg) Worada (on the left) and Biittso (on the right) and (on photo 5229.jpg) Worada's family verifying the video recordings. Biittso is a potter and a passionate musician. He plays the lyre and the bamboo trumpet. As a bamboo trumpet player here is a member of trio who performs at mourning ceremonies and at cultural events. Worada is potter, a bamboo trumpet and a lyre musician. He is member of a bamboo trumpet trio which performs at mourning ceremonies and at cultural events. Yvonne Treis is a linguist and works on Ethiopian languages at CNRS in France.