Definition of Amm (group)

AMM have never been well-known to the general public, but have been, in their own way, hugely influential on several generations of adventurous musicians. AMM have been called "legendary" and "groundbreaking.", and are notable as perhaps the first musical group deliberately to try to make music not related to any established musical genre: as Michael Nyman wrote, "AMM seem to have worked without the benefit or hindrance of any kind of prepared external discipline."