Since 1950 several groups have explored live improvisation in contemporary music. Here is a list of some of the most influential ones.

Group Ongaku, Taj Mahal Travellers and Takehisa Kosugi as part of the Fluxus movement in Japan

AMM

Musica Elettronica Viva (MEV)

Gruppo di Improvvisazione Nuova Consonanza

New Music Ensemble

ONCE Group

Sonic Arts Group

Improvisation Chamber Ensemble

Scratch Orchestra