The popularity of the trumpet (cornet), clarinet, and trombone in jazz was due mostly to the influence of brass bands.
Jazz is a style of music that is frequently improvised, created by African Americans, and that draws on both African and European rhythms and harmonic structures. It is commonly characterized by syncopated rhythms, polyphonic group playing, varied degrees of improvisation, frequently purposeful pitch deviations, and the use of unique timbres. It was largely influenced by ragtime and the blues.
A brass band is a musical group that typically only consists of brass instruments, most frequently with a percussion section. Brass bands are often used to describe ensembles using brass and woodwind instruments, however military bands, concert bands, or "brass and reed" bands may be a better description.
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