Bore (wind instruments) in the context of "Ophicleide"

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.

The clarinet is a single-reed musical instrument in the woodwind family, with a nearly cylindrical bore and a flared bell.

Clarinets comprise a family of instruments of differing sizes and pitches. The clarinet family is the largest woodwind family, ranging from the BB♭ contrabass to the A♭ piccolo. The B♭ soprano clarinet is the most common type, and is the instrument usually indicated by the word "clarinet".

The cornet (/ˈkɔːrnɪt/, US: /kɔːrˈnɛt/) is a brass instrument similar to the trumpet but distinguished from it by its conical bore, more compact shape, and mellower tone quality. The most common cornet is a transposing instrument in B♭. There is also a soprano cornet in E♭ and cornets in A and C. All are unrelated to the Renaissance and early Baroque cornett.

The alphorn (German: Alphorn, Alpenhorn; French: cor des Alpes; Italian: corno alpino) is a traditional lip-reed wind instrument. It consists of a very long straight wooden natural horn, with a length of 3 to 4 metres (9.8 to 13 feet), a conical bore and a wooden cup-shaped mouthpiece. Traditionally the alphorn was made in one piece from the trunk of a pine. Modern alphorns are usually made in three detachable sections for easier transport and handling, carved from blocks of spruce. The alphorn is used by rural communities in the Alps. Similar wooden horns were used for communication in most mountainous regions of Europe, from the Alps to the Carpathians.

The flugelhorn (/ˈfluːɡəlhɔːrn/), also spelled fluegelhorn, flugel horn, or flügelhorn, is a brass instrument that resembles the trumpet and cornet, but has a wider, more conical bore. Like trumpets and cornets, most flugelhorns are pitched in B♭, though some are in C. It is a type of valved bugle, developed in Germany in the early 19th century from a traditional English valveless bugle. The first version of a valved bugle was sold by Heinrich Stölzel in Berlin in 1828. The valved bugle provided Adolphe Sax (creator of the saxophone) with the inspiration for his B♭ soprano (contralto) saxhorns, on which the modern-day flugelhorn is modelled.

The tenor horn (British English; alto horn in American English, sometimes E♭ horn) is a brass instrument in the saxhorn family pitched in E♭ with three piston valves. It has a bore that is moderately conical, like the cornet and baritone, and normally uses a deep funnel-shaped mouthpiece. In Europe it is known as the Althorn and has rotary valves and an oval shape.

It is most commonly used to play inner harmonies and off-beats in British brass bands and Mexican banda music, reading transposing treble clef, whereas the horn dominates in concert bands and orchestras. In the late 20th century it began to be considered as a serious solo voice, and has amassed a repertoire of contemporary concertos and other solo works.