Afro-Cuban jazz (often historically called Cubop) is a fusion of Afro-Cuban rhythmic traditions and North American jazz harmony, melody, and improvisation.
It sets jazz writing and soloing inside the matrix of the clave, combining straight-eighth Afro-Cuban grooves (mambo, rumba, son montuno, danzón) with big-band and bebop vocabulary. Hallmarks include piano montunos (guajeos), tumbao bass lines, horn mambos and moñas (syncopated riffs), and a percussion section of congas, bongos, timbales, cowbell, and claves.
The result is music that is harmonically sophisticated yet dance-driven, balancing arranged horn passages with open sections for improvisation, and emphasizing call-and-response and layered polyrhythms.
Afro-Cuban jazz crystallized in New York City in the 1940s as Cuban musicians and jazz players shared stages and bands. Machito and His Afro-Cubans (directed musically by Mario Bauzá) introduced jazz orchestration to Cuban rhythms starting in 1943, establishing the big-band model with congas, bongos, timbales, and a horn section. The pivotal 1947 collaboration between Dizzy Gillespie and Cuban percussionist-composer Chano Pozo produced "Manteca" and "Cubana Be, Cubana Bop," embedding the 2–3/3–2 clave into bebop harmony and improvisation and defining Cubop’s identity.
Arrangers like Chico O’Farrill formalized the language with extended works such as the "Afro-Cuban Jazz Suite" (1950). Parallel innovations in Cuba by Bebo Valdés and others enriched the harmonic palette and the role of piano montunos in jazz contexts. In dance halls and on bandstands, mambo-era orchestras proved that sophisticated jazz writing could thrive atop Afro-Cuban grooves.
Artists like Cal Tjader broadened the style’s reach on the U.S. West Coast, while Mongo SantamarĂa’s "Afro Blue" and crossover hit "Watermelon Man" linked Afro-Cuban jazz with soul jazz and R&B audiences. Tito Puente’s timbales-centered bands popularized virtuosic percussion features and codified many arranging conventions (mambos, moñas, and percussion solos) that remain central to the style.
From the 1960s forward, New York’s Nuyorican scene (including Eddie Palmieri) fused advanced jazz harmony with hard-edged montunos, influencing salsa, boogaloo, and modern Latin jazz. Subsequent generations—both in the U.S. and internationally—have adapted the idiom with contemporary jazz harmony, electric instruments, and studio production, while keeping the music anchored to the clave and the core percussion vocabulary.