Double reeds are a type of woodwind instrument that produce sound through two reeds vibrating against each other. Instruments like the oboe and bassoon use double reeds, which are made from a special cane material. The player blows air between the two reeds, causing them to vibrate and create sound. These instruments are known for their unique timbre and expressive capabilities. Double reeds require precise control and technique, as the reeds must be properly adjusted for optimal sound production. Musicians often spend time adjusting their reeds to achieve the desired tone and pitch.