Instrumental Duet Flute,Instrumental Duet,Oboe - Level 2 - Digital Download SKU: A0.763807 Composed by Old German Melody. Arranged by Nigel Williams. Christmas,Instructional,Renaissance,World. Score and parts. 6 pages. Nigel Williams #6510765. Published by Nigel Williams (A0.763807). A Great and Mighty Wonder is a popular carol during the season of Advent and Christmas. This noble German melody makes for an ideal duet arrangement with each instrument both leading and accompanying. (Also arranged in different keys for flute duet and flute and clarinet). The score downloads with parts attached and the performance duration is over two minutes. Enjoy browsing my many arrangements for woodwind duet available for download on SMP.