Which instruments are classified as double-reed woodwind instruments?

Double-reed woodwind instruments are characterized by their use of two reeds that vibrate against each other to produce sound. This design results in a unique timbre and sound quality distinct from single-reed instruments, which use one reed, or non-reed instruments altogether, such as flutes.

The oboe and bassoon are prime examples of double-reed instruments. The oboe has a conical shape and produces a clear and piercing sound, while the bassoon features a larger and more complex design, producing a deeper and more mellow tone. Both instruments require specialized techniques in playing and reed-making, which are integral to their distinct sounds in orchestral and chamber music settings.

In contrast, the clarinet and saxophone are single-reed instruments, the flute and piccolo are non-reed instruments, and the trumpet and trombone fall into the brass category and do not utilize reeds at all. These classifications highlight the unique qualities and construction of the oboe and bassoon, confirming their status as double-reed woodwind instruments.