In the early 50's I attended a music camp at ISOMATA in the So. Ca. mountains, a camp sponsored by USC. We presented a musical or folk opera written by Josef Marais entitled "African Heartbeat." He was in residence at the camp and was an avid amateur violinist. On several occasions I was invited with a viola player and a cellist to play string quartets with him. He was a kind man and a fine musician. Miranda, his wife, I recall as a lovely lady. They entertained us many an evening with their songs. I had forgotten all this. Thanks for letting me recall.