Some woodwinds are musical instruments that produce sound by blowing air through a reed or a double reed. The most common woodwinds include reeds, such as clarinets and saxophones, and oboes. Reeds are single-reed instruments that use a thin strip of cane or synthetic material to vibrate and produce sound. Oboes are double-reed instruments that use two pieces of cane or synthetic material to vibrate and produce sound. Both reeds and oboes are used in orchestras, bands, and other musical ensembles.