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The Oboe is a Woodwind instrument which belongs to the Double-reed subfamily. It is played through a reed, which is made by folding a cane double and wrapping it. The body is usually made of maple; while the keys are made of nickel silver or metal.
The bassoon player produce the sound by blowing into the reed. It is pitched in the key of C, notated in bass clef, although the tenor clef is used for highest registers. Its playing range goes from B-flat1 to F5. In the low register the notes are substantial, compact and inconspicuous, whilst the middle register is rich, clear and stately. The upper notes are often felt to sound pressed.
The Contrabassoon is the biggest instrument of the Woodwind family. The only difference is that it is double bigger than a Bassoon. It is played like the Bassoon and are made of the same materials.
It produces its sound by blowing into the reed, like in the Bassoon. It is pitched in the key of C and notated in treble clef too, but it sounds one octave lower than the Bassoon. It is written from B-flat1 to C4, but it sounds from B-flat0 to C3. Its low register sounds substantial, sustaining and dark. The middle register is dark, sonorous and powerful, while the upper register is less loud, bright and acerbic.