Air in D Major for flute and orchestra

J.S. Bach: Air in D Major for flute and orchestra, BWV 1068 (from Orchestral Suite No. 3) was composed in 1730, as the second movement of a six-movement suite.
Initially written for strings and continuo alone by J.S. Bach during his tenure in Köthen, the suite was later arranged for orchestra. C.P.E. Bach wrote out the trumpet, oboe, and timpani parts, and J.S. Bach's student J.L. Krebs wrote out the second violin and viola parts.
The arrangement of the second movement, known as "Air on the G String," was made by German violinist August Wilhelmj in 1871, who transposed it down to C Major. That way, the first violin part can be played entirely on the violin's lowest string (the G string, hence the name), which gave the piece its popular title.
Wilhelmj’s adaptation emphasizes a Romantic-era sensibility, with muted accompaniment and subdued dynamics, contrasting with Bach’s original Baroque texture.
Wilhelmj's arrangement greatly popularized the piece, and although his version is rarely played anymore, his original title, "Air on the G string," has been retained as the commonly used name of various arrangements, whether or not a string instrument is playing on its G string. There have been made several arrangements for the flute.