Three unique arrangements from Gilbert and Sullivans The Mikado for bassoon quartet (plus optional contra bassoon). I am so proud, Madrigal and Heres a how-de-do!. Graham Sheen is Principal Bassoon of both the BBC Symphony Orchestra and St Martin in the Fields and his skills as an arranger are highly regarded.BASSOON ENSEMBLE. Pieces in book are approximately Grade: 6 - 8 standard.