Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The semi-contrabassoon (also called quint bassoon, semi-contra or half-contra) is a double reed woodwind instrument pitched between the bassoon and the contrabassoon. It is pitched in either F (Quint bass) or G (Quart bass) a fifth or fourth respectively below the bassoon. These instruments were used mostly in the 18th century and are remnants of the old Quartbass Dulcians. Generally these were considered to be easier to make than a full Contrabassoon due to its more compact size. These were shaped like over-sized Bassoons between five and six feet tall with a long descending bocal. Little literature exists that indicate that these instruments were used, although it is possible that they may have been used to some extent in military bands.