But picketing - picketing for or against something, and handing out literature - these are conspicuously formal actions. They have to be understood as indirect communication.
That kind of piece, perhaps most recognizable because of Yoko Ono's similar work, built a bridge between performance art and music - and without raising any awkward social issues.
What I had learned first about John Cale was that he had written a piece which pushed a piano down a mine shaft. We hungered for music almost seething beyond control - or even something just beyond music, a violent feeling of soaring unstoppably, powered by immense angular machine across abrupt and torrential seas of pounding blood.
