Zan Stewart has an interesting article in the Newark Star-Ledger called Keith Jarrett's subtle and solitary art: "For Keith Jarrett, the gifted pianist and composer who is a remarkable interpreter of both jazz and classical music, improvising is his artistic raison d'etre, a very serious undertaking. 'Improvisation is a delicate thing,' he says. 'It's made up of so many billions of things happening at the same exact moment. (While improvising), I am willing myself into a situation I still know nothing about. It's like going to battle ... this thing is so demanding.'"