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The sarrusophone is an instrument with a double-reed. It is made of brass and exists in several sizes, the only one ever used in the orchestra being the double-bass sarrusophone, which has approximately the same range as the double-bassoon and is sometimes (but rarely) made use of in the orchestra instead of the latter instrument. The tone of the sarrusophone is something like that of the bassoon.

22. The French horn (often called valve horn or simply horn) really consists of a long tube (about 16 feet) which is bent into circular form for convenience in handling. Its range is from

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