Listen to Etude No. 1 in E minor: Allegro non troppo online. Etude No. 1 in E minor: Allegro non troppo is a Portuguese language song and is sung by Oscar Ghiglia. Etude No. 1 in E minor: Allegro non troppo, from the album Bachianas Brasileiras, Fantaisie pour saxophone soprano & Forest of the Amazon, was released in the year 2013. The duration of the song is 2:09. Download Portuguese songs online from JioSaavn.