The description 'mathematical' implies that if one knows, and applies the rule, the outcome will always be duplicated. Thus, if you know Bach, you can duplicate Bach, a feat yet to be accomplished.
I am a mathemathician, and disagree completely. -- Daniel Canarutto mathematical physicist & dedicated amateur hornist http://www.dma.unifi.it/~canarutto/ _______________________________________________ post: horn@music.memphis.edu unsubscribe or set options at http://music2.memphis.edu/mailman/options/horn/archive%40jab.org