Bob Stewart

Jazz-funk is a groove-forward hybrid of jazz improvisation and harmony with the rhythmic drive and backbeat of funk. It features syncopated basslines, crisp drum patterns, and tight horn or keyboard riffs, often organized around vamping two- or four-bar progressions rather than complex chord changes. The sound is defined by electric instruments—Fender Rhodes, Clavinet, analog and early digital synthesizers, electric bass, and wah-inflected guitar—alongside punchy horn sections and extended solos. Compared to traditional jazz, the harmonic language is leaner but still rich, emphasizing 9ths, 11ths, 13ths, and modal centers (especially Dorian). The music aims for deep, danceable pocket, slick production, and a soulful, urban feel.

Jazz tuba is the use of the tuba (and its marching cousin, the sousaphone) as a primary bass and sometimes melodic voice within jazz ensembles. In early New Orleans and Chicago styles the instrument provided a buoyant, two‑beat bass foundation for parades and dance halls before the double bass became standard. Across swing, traditional jazz, and modern creative scenes, the tuba has persisted as a deep, warm, and surprisingly agile instrument—capable of walking lines, second‑line grooves, counter‑melodies, and solos with tongued articulation and vocal‑like phrasing. Today the jazz tuba spans traditional and contemporary idioms: from classic Dixieland to brass‑band funk and modern small‑group improvisation, where extended techniques, amplification, and rhythmic concepts recast the instrument as both engine and featured voice.