Advanced Techniques for Bands Bassoon Author:Nilo W Hovey For Bassoon. Music notes book. Contents include The Key of Bb,The Key of Eb, The Key of Ab, The Key of F, The Key C, Te Key Db, The Key of G, music notes for A German Chorale, Selesian Folk Song A 17th Century Hymn, Austrian Hymn, A Netherlands Melody, and Handel Air.