A double reed is a type of reed used to produce sound in various wind instruments. In contrast with a single reed instrument, where the instrument is played by channeling air against one piece of cane which vibrates against the mouthpiece and creates a sound, a double reed features two pieces of cane vibrating against each other. This means, for instruments with the double reed fully exposed, that the air flow can be controlled by the embouchure from the top, bottom and sides of the reed. The term double reeds can also refer collectively to the class of instruments which use double reeds.
Bassoon reeds, showing the oval opening (bottom left), which is actually a vesica piscis
Bagpipe of Portugal reed (gaita transmontana)
Bassoon reed
Bombard reed
A reed is a thin strip of material that vibrates to produce a sound on a musical instrument. Most woodwind instrument reeds are made from Arundo donax or synthetic material. Tuned reeds are made of metal or synthetics. Musical instruments are classified according to the type and number of reeds.
Alto and tenor saxophone reeds.
Bassoon double reeds.
The four reed shehnai is one of the most recognized instruments of India