Listen to Duo: Aaron Copland online. Duo: Aaron Copland is an English language song and is sung by Flutesweets & Tickletoons. Duo: Aaron Copland, from the album CANCELLEDGreen Golly & Her Golden Flute, was released in the year 2010. The duration of the song is 1:04. Download English songs online from JioSaavn.