Reed instruments are a type of musical instrument that use a reed to produce sound. The most common reed instruments are saxophones and oboes, both of which have five letters in their names. Saxophones are a type of woodwind instrument that use a single-reed mouthpiece to produce a range of tones. Oboes are also a type of woodwind instrument, but they use a double-reed mouthpiece to produce a more mellow sound. Both saxophones and oboes are popular instruments in many types of music, from jazz to classical.