Kees Olthuis co-wrote this work (originally titled Het hemelse trompetje and featuring a trumpet) with Annie M.G. Schmidt. In a new arrangement transcribed especially for the J.O.N.G.ensemble of eight woodwind and brass players, one double bass and one percussionist, the work will be enjoying its world premiere at the Grachtenfestival 2012. It tells the story of a young boy who finds an angel’s lost bassoon and discovers the instrument's heavenly sound. The boy gains fame as a child prodigy, but soon grows bored with the spotlight. Meanwhile, the angel mourns the loss of the bassoon. Help arrives in the form of an older angel.
You can also get to Undercurrent by boat.