Bassoon,Instrumental Duet,Oboe - Level 3 - Digital Download SKU: A0.1495671 By Richard St. Clair. By Richard St. Clair. Arranged by Richard St. Clair. 21st Century,Chamber,Classical,Instructional. 13 pages. Richard St. Clair #1072194. Published by Richard St. Clair (A0.1495671). PUZZLES is a set of 7 pieces for Oboe and Bassoon, each of which solves a contrapuntal puzzle. The total time for performance is about 10 minutes at least.