The contrabassoon is a larger version of the bassoon sounding an octave lower. Its technique is similar to its smaller cousin, with a few notable differences. Compared to the bassoon the contrabassoon’s reed is larger, the fingering is slightly different, and the instrument is twice as long.
GalleriesWoodwind Musical Instruments
Encyclopaedia Britannica (11th ed., vol. 7) (New York, NY: The Encyclopaedia Britannica Company, 1910)