Reed (instrument) in the context of "Free reed aerophone"

The oboe (/ˈoʊboʊ/ OH-boh) is a type of double-reed woodwind instrument. Oboes are usually made of wood, but may also be made of synthetic materials, such as plastic, resin, or hybrid composites.

The most common type of oboe, the soprano oboe pitched in C, measures roughly 65 cm (25+1⁄2 in) long and has metal keys, a conical bore and a flared bell. Sound is produced by blowing into the reed at a sufficient air pressure, causing it to vibrate with the air column. The distinctive tone is versatile and has been described as "bright". When the word oboe is used alone, it is generally taken to mean the soprano member rather than other instruments of the family, such as the bass oboe, the cor anglais (English horn), or oboe d'amore.

An air horn is a pneumatic device designed to create a loud noise for signaling purposes. It usually consists of a source which produces compressed air, which passes into a horn through a reed or diaphragm. The stream of air causes the reed or diaphragm to vibrate, creating sound waves, then the horn amplifies the sound making it louder. Air horns are widely employed as vehicle horns, installed on large buses, semi-trailer trucks, fire trucks, trains, and some ambulances as a warning device, and on ships as a signaling device.

The musical instrument known as the regal or regalle (from Middle French régale)is a small portable organ, furnished with beating reeds and having two bellows. The instrument enjoyed its greatest popularity during the Renaissance. The name "regal" was also sometimes given to the reed stops of a pipe organ, and more especially to the vox humana stop.

Reed aerophones is one of the categories of musical instruments found in the Hornbostel-Sachs system of musical instrument classification. In order to produce sound with these Aerophones the player's breath is directed against a lamella or pair of lamellae which periodically interrupt the airflow and cause the air to be set in motion.