Thanks Dave! I hope my Ford V-10 never sounds like that! dave *********** REPLY SEPARATOR *********** On 1/20/2003 at 10:33 PM Dave Doremus wrote: >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." >> > > >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives _____________________________ David M. Porritt dporritt@mail.smu.edu Meadows School of the Arts Southern Methodist University Dallas, TX 75275 _____________________________
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