When the Bell System began installing pushbutton phones a few years ago, it had great expectations. The new phones would enable users to make faster connections than the old dial variety. What Ma Bell did not anticipate, however, was that the pushbutton phone would become America's newest musical instrument.
The phone qualifies for that title because each of its buttons, when pushed, produces a different musical tone. Simply by punching 33363213, for example, a telephoner can play a respectable rendition of Raindrops Keep Fallin' on My Head. Tapping out 1199009 will produce Twinkle, Twinkle, Little Star, and 0005 8883 calls forth the...