Jelly

Jazz is an improvisation-centered music tradition that emerged from African American communities in the early 20th century. It blends blues feeling, ragtime syncopation, European harmonic practice, and brass band instrumentation into a flexible, conversational art. Defining features include swing rhythm (a triplet-based pulse), call-and-response phrasing, blue notes, and extended harmonies built on 7ths, 9ths, 11ths, and 13ths. Jazz is as much a way of making music—spontaneous interaction, variation, and personal sound—as it is a set of forms and tunes. Across its history, jazz has continually hybridized, from New Orleans ensembles and big-band swing to bebop, cool and hard bop, modal and free jazz, fusion, and contemporary cross-genre experiments. Its influence permeates global popular and art music.

New Orleans brass band is a parade-born ensemble tradition that blends European military band instrumentation with African American rhythmic feel and collective improvisation. Typical lineups feature trumpets and/or cornets carrying the melody, trombones with tailgate counter-lines, clarinet or saxophone weaving obligato figures, a sousaphone (or tuba) providing walking bass, and a street percussion battery with snare, bass drum, and cymbals driving the second line groove. Repertoire spans hymns and dirges for jazz funerals, blues, ragtime strains, marches, and joyous up-tempo shout choruses for social-aid-and-pleasure club parades. The style is defined by swing, syncopation, call-and-response, polyphonic collective improvisation, and the distinctive second line beat—an elastic, syncopated march feel that turns the street into a dance floor. Since the 1970s, many bands have incorporated funk, R&B, and hip-hop influences while retaining the core parade ethos.

Ragtime is an African American–rooted piano style that flourished from the 1890s to the 1910s, characterized by lively syncopation in the right hand against a steady, march-like “oom‑pah” accompaniment in the left hand. Typically written in 2/4 or 4/4 time and notated with straight (unswung) eighth notes, classic rags unfold in multiple 16‑bar strains, often in the form AABBACCDD. The music draws on cakewalk rhythms, marching-band forms, and popular song, and it became a sensation through sheet music, piano rolls, and parlor performance. Scott Joplin, known as the “King of Ragtime,” helped codify the genre’s refined, compositional approach, calling for moderate tempos and a clear, singing melody. Beyond solo piano, ragtime was arranged for small ensembles and orchestras, found a home in vaudeville and dance halls, and laid essential groundwork for early jazz, stride piano, and much of 20th‑century American popular music.

Brass band refers to ensemble-driven music performed primarily by brass instruments and percussion, with a sound characterized by powerful, blended timbres, antiphonal choirs, and a strong emphasis on melody and counter-melody. In its most codified form (the British-style brass band), the ensemble uses cornets, flugelhorn, tenor horns, baritones, euphoniums, trombones, tubas, and percussion, all written in transposed parts to create a homogenous, organ-like sonority. Repertoire spans marches, hymn tune settings, operatic and orchestral transcriptions, original contest works, and light music. Globally, the term also encompasses regional traditions such as New Orleans parade/second-line bands (merging ragtime, early jazz, and funk), and Balkan Romani brass bands (fast dance meters and virtuosic ornamentation), showing the format’s adaptability across cultures and celebrations.