Pat-a-Pan is a rustic Europen Christmas carol, here set in a round beginning with the highest voice and pyramiding down. The percussive "drone" parts add a distinct color. This sort of writing works well with various combinations of woodwind instruments.Even the lowest part gets to shine with an unaccompanied pass through the melody. Parts provided variously for flute, oboe, clarinet, alto sax, tenor sax, bass clarinet, bassoon & horn.