 "Uirapuru" originated as a fifteen-minute symphonic poem titled "Tédio de alvorada" (Boredom at Dawn), composed in Rio de Janeiro in 1916 and first performed there on a concert sponsored by the for the benefit of retired journalists, at the Theatro Municipal on 15 May 1918 by an orchestra made up of 85 music teachers, conducted by Soriano Robert.Villa-Lobos extensively reworked and expanded this composition into the score retitled "Uirapuru", beginning in 1917.However, it was not until Serge Lifar and his ensemble danced the ballets "Jurupari" (to the music of "Chôros No.