Ultralyd

Jazzcore is a high‑intensity fusion of free jazz’s open improvisation with the velocity, distortion, and confrontational aesthetics of hardcore punk and noise rock. Typically built around saxophone, electric guitar, electric bass, and drum kit, it leans into atonality, sudden dynamic lurches, odd meters, and blast‑beat or punk tempos. Extended techniques (multiphonics, feedback, prepared instruments), sharp stop‑start edits, and collage-like forms are common, producing music that can pivot from spacious abstraction to ferocious walls of sound in seconds. Where jazz fusion polished virtuosic interplay, jazzcore emphasizes abrasion and urgency while retaining improvisational freedom—placing skronking saxes and freely shifting rhythms inside the body language of punk.