Air on the G String, from Orchestral Suite No 3 in D, BWV.1068 [flexible instrumentation]
For interchangeable woodwind ensemble. Part are as follows: Part 1 - flute/oboe/clarinet; Part 2 - flute/oboe/clarinet; Part 3 - clarinet/alto sax; Part 4 - clarinet/alto sax/tenor sax/french horn; Part 5 - bass clarinet/bassoon/bari sax.