Hm. I want to appologize to Robert Johnston for referring to him as "the guy who worked out bending from the physics point of view," and for scientific correct- ness I want to post the correct reference to his article (as I promised): Robert B. Johnston, "Pitch Control in Harmonica Playing", Acoustics Australia, volume 15 No 3, pp. 69-75 Bart de Boer boerb@xxxxxxxxxxxxxxxx