Huskonsert i Aurskog - musikk av og etter Anders Heyerdahl

ECM style jazz refers to the spacious, chamber-like jazz aesthetic associated with the German label ECM (Edition of Contemporary Music), founded in 1969. The sound blends the restrained lyricism of Cool Jazz, the notated clarity and counterpoint of Third Stream/Western classical traditions, and the coloristic harmony and timbral exploration of Jazz Fusion. Hallmarks include crystalline recording quality with pronounced room ambience, patient tempos, modal or pedal-point harmony, and a strong emphasis on tone, silence, and ensemble blend. Melodies often feel hymn-like or folk-inflected; rhythms drift between rubato openness and subtly grooving ostinati rather than hard backbeats. The result is contemplative, atmospheric jazz that can feel as close to contemporary classical and ambient music as it does to post-bop.

Free jazz is a radical branch of jazz that rejects fixed chord progressions, strict meter, and conventional song forms in favor of collective improvisation, textural exploration, and spontaneous interaction. Musicians prioritize timbre, dynamics, and gesture as much as pitch and harmony, often using extended techniques (multiphonics, overblowing, prepared piano) and unconventional sounds. While rooted in the blues and earlier jazz vocabularies, free jazz frees improvisers from pre-set harmonic cycles, allowing lines to unfold over tonal centers, shifting modes, drones, or complete atonality. Rhythm sections may float without a steady pulse, or drive with layered polyrhythms and “energy playing.” The result ranges from contemplative soundscapes to cathartic, high-intensity eruptions. Culturally, the genre intersected with the civil rights era and broader avant-garde movements, emphasizing autonomy, community, and new possibilities for musical expression.

Jazz accordion is a jazz practice that features the accordion—either piano accordion or chromatic button accordion—as a principal improvising and comping instrument. It adapts swing-time phrasing, bebop vocabulary, and modern jazz harmony to the bellows-driven mechanics of the accordion. The right hand typically carries melodic lines and solos, while the left hand provides bass motion and harmonic support, either via the traditional stradella bass system or a free-bass system that enables walking bass and rootless voicings. In European contexts the style often draws on musette waltzes and Parisian café idioms; elsewhere it readily blends with tango, Latin, and chamber-like small-group settings. The result ranges from fleet, guitar-like single‑note runs and elegant chord‑melody textures to luminous, reed‑choir timbres—capable of both lively swing and intimate, lyrical ballad playing.