Puzzle 295 is from the Mozart Dice Game, as used by John Cage and Lejaren Hiller in their work "HPSCHD".
I don't know what HPSCHD is, but it's a catchy title I must say. I must give in, you win, Mr Bryn.
Tony, HPSCHD was so titled due to the fact that in those ancient days when Cage and Hiller composed it, computer filenames only ran to six characters. The work is for any number of harpsichords, computer generated sound and projected images. It was performed at The Round House in 1972, jointly as a BBC Prom, and as part of Arts Spectrum. That performance lasted several hours, starting before the BBC broadcast began, and continuing after it finished. I think there were 7 harpsichord players on that occasion, including Cornelius Cardew and John Tilbury. There was also a Nonesuch LP issued earlier, each copy of which came with its own unique computer print-out of a schedule for altering the tone and volume levels on the playback equipment during the spinning of the disc. I've heard that Mozart Dice Game so many times through the good offices of Cage and Hiller, and also through its use in the television documentary "Here's a Piano I Prepared Earlier", that
it is indelibly engrained on my memory.
[This was my celebratory message, by the way.]
