A wind instrument designed by Sarrus in 1856. The sarrusophone has a double reed similar to a bassoon or oboe, but is made of brass, and resembles the saxophone in fingering and range. The sarrusophone was mainly invented as a substitute for oboes and bassoons in military bands.a double-reed instrument of the oboe family, classed as woodwind, even though it is made of brass. named after Sarrus, its 19th-century French inventor