Jane Bunnett

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.

Changüí is a rural Afro-Cuban genre that emerged in the eastern province of Guantánamo. It is a lively, dance-driven music that predates and directly informs son cubano. Typical ensembles feature the Cuban tres (providing guajeos/montunos), marímbula (a plucked lamellophone acting as the bass), bongó de monte (a rustic bongo with driving martillo patterns), and the guayo (a metal scraper whose steady, sparkling texture locks the groove). Vocals are organized around call-and-response between an improvising lead singer (pregón) and a chorus (coro), often using witty, topical, or improvised verses. Rhythmically, changüí leans on syncopations related to the tresillo and cinquillo, creating a forward-leaning, propulsive feel in duple meter. Harmonically it favors simple, vamp-like I–V or I–IV–V loops in major or mixolydian modalities, leaving space for percussive interplay and vocal improvisation. The overall effect is raw, communal, and celebratory, with strong ties to agricultural dances and local festivities.