On the day after Christmas (how appropriate the date), David Arner gave a solo performance at the Performing Arts Center in Rhinebeck, NY. The spry, tall, thin, angular pianist walked on stage, bowed, sat on the bench in front of a baby grand piano and looked at the keyboard in thought. One hand playing two notes later began the setting of a framework for what Arner dubs a spontaneous composition. The first piece established his focus: span, interval, and a unity of functioning of both han