Stretch Music

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.

World music is a broad, industry-coined umbrella for traditional, folk, and contemporary popular styles from around the globe that fall outside the Anglo-American pop mainstream. The label emerged in the 1980s as a retail and marketing category to group diverse regional musics for international distribution. Musically, it spans acoustic and electric instrumentation; modal, pentatonic, and microtonal pitch systems; and rhythms ranging from cyclical grooves and polyrhythms to asymmetrical meters. While the term can obscure local specificity, it also facilitated cross-cultural collaboration, festivals, and recordings that brought regional genres to wider audiences.

Djembe refers to the West African drum-centered music tradition built around the goblet-shaped djembe and its bass-drum family (dununba, sangban, and kenkeni). It is a polyrhythmic, participatory style that accompanies dance, rites of passage, agricultural cycles, and communal celebrations among Mandé peoples. Characteristic playing features are three core tones on the djembe—bass, open tone, and slap—combined into interlocking patterns that create a dense, swinging groove in either 12/8 (ternary) or 4/4 (binary) feels. A lead drummer (djembefola) uses breaks, calls, and improvisations to cue dancers and ensemble changes, while bell patterns on the dunun stabilize the timeline. The result is physically propulsive, call‑and‑response music that is at once communal, ceremonial, and highly virtuosic.