A relative of the oboe, the heckelphone is a double reed instrument invented in the early 1900s by German instrument maker
Wilhelm Heckel. It was intended to fill the gap between the cor anglais (English horn) and the bassoon.
From Richard Strauss and Paul Hindemith to Graham Waterhouse and Paul Winter, many composers have written, and continue to write, for the heckelphone.
Sadly, few recordings are currently available.