These extended pieces for solo piano are lovely examples of spontaneous composition. As such, they make involving, even engrossing listening, as Jarrett, with a gently propulsive drive and sustained invention, creates tuneful vamps and explores feelings and textures from classical to minimalist to pop. What there isn't is anything resembling jazz feeling, whether based in swing or in the avant garde. The result is almost a genre unto itself, and, as such, it rather leads the listener into a dead end. But it's a nice trip.