Flute,Instrumental Duet,Tuba - Level 2 - Digital Download SKU: A0.1503490 Composed by Johann Sebastian Bach. Arranged by David Burndrett. Baroque. 4 pages. David Burndrett #1078947. Published by David Burndrett (A0.1503490). This is an easy arrangement of Air on a G String, for flute and tuba duet.Both parts get part of the tune.Download includes the score and both of the parts.