Noun
a wind instrument that consists of a brass tube (usually of variable length) that is blown by means of a cup-shaped or funnel-shaped mouthpiece
Source: WordNetAn additional musical theme with an ensemble, led by a synthesized mid-range brass instrument, ends each episode. Source: Internet
Brass embouchure While performing on a brass instrument, the sound is produced by the player buzzing his or her lips into a mouthpiece. Source: Internet
Rudolstadt 2012 The sousaphone is a valved brass instrument with the same tube length and musical range as other tubas. Source: Internet
No valved, brass instrument can be entirely conical, since the middle section containing the valves must be cylindrical. Source: Internet
In fact, the flared end of a brass instrument is not to make the instrument sound louder, but to correct for tube length “end effects” that would otherwise make the overtones significantly different from integer harmonics. Source: Internet
Later, and most importantly, François Périnet received a patent in 1838 for an improved valve which is the basis of all modern brass instrument piston valves. Source: Internet