It was about 1/2 hour of excellent percussion. He had a large drum hanging from a bar with a mic amplifying the sound. There was a big metal hollow rectangle with no solid side on the bottom. He did so much with the huge sounds that came from that. The largest sounds were when he played it with the mallet from the inside.
He also had some hanging gongs and one stand-alone gong attached to a string. He sometimes played the stand-alone with the mallet and sometimes used it to play the other gongs, sometimes using the mallet.
He didn't just hit the instruments with the mallets. Sometimes he would run the mallet over the surface of the big drum or the rectangle.
I love percussion, so i enjoyed it.