Enigma 1634: Symphonic buttons
12 December 2011
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From New Scientist #2800, 19th February 2011 [link]
I was playing with my touch-tone phone to see whether I could play tunes, and I had just discovered that I could make a reasonable approximation to the opening bars of Beethoven’s Fifth Symphony by keying 8883 2221 (using a rhythm similar to the Morse code for “v v”: • • • – • • • –), when I dropped the phone and all the buttons 1 to 9 fell out. I pushed them back, but then saw that no button was in its correct place. I did notice that the top three rows were now perfect squares.
What buttons do I now press to play Beethoven’s opening bars?