I thought this was fun enough to send to the list, but they dont really talk about the temperament of choice......the intonation problems in choir would be staggering...... ----Dave ----------------------------- Dave Doremus RPT New Orleans algiers_piano@bellsouth.net ------------------------------ > > Formula 1 team programs engine to play music. Gohear at;- > http://astro.temple.edu/~kmr/Chauffe2.mp3 > > First you'll hear a 10-cylinder, 750 horsepower Asiatech F1 engine being > warmed up. Then it performs a rousing version of "When The Saints Come > Marching In", to the delight of assembled pit staff and > journalists. > > Here's how the magic was achieved (technical/musical details via F1 > Racing magazine): > > "As we all know, a V10 engine produces five combustions per revolution > at a frequency per second of 60/(5 x revs per minute), which equals > 12/rpm. Therefore, to work out the revs you need to hit a particular > Musical note, you multiply the note's frequency by 12. To play a 440Hz > 'A', for example, you need 5,280rpm. For 'C', use 3,139rpm, for 'F' > 4,191rpm, and so on. > > Asiatech's French technicians (the engine, despite its name, is derived > from a Peugeot design) simply programmed their engine to run through the > various rev/note ranges in the correct sequence. > The result is delightful. And think of the possibilities - BMW's F1 > engine, which howls all the way to 19,050rpm, could rip through the > entire Hendrix songbook. > > Even better: imagine a massed NASCAR choir performing "The Star Spangled > Banner"! Being eight-cylinder engines, the frequency per second would be > 60/(4 x revs), which means you'd multiply the note frequencies by 15 > instead of 12: 'A' would arrive at 6,600rpm, 'C' at 3,923rpm, 'F' at > 5,238rpm, etc." >
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