<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html;charset=ISO-8859-1"> <title></title> </head> <body text="#000000" bgcolor="#ffffff"> Mark D., If you want to know the actual beat rate of an interval, wouldn't you need to measure the frequencies of the coincident partials rather than computing from the fundamentals? Tom Cole Mark Davidson wrote: <blockquote type="cite" cite="mid003101c37f5d$d9e8bae0$6400a8c0@earthlink.net"> <blockquote type="cite"> <pre wrap="">Hi Pianotech List Readers, Do any of you know of an electronic beat rate counter? I want to be able to measure the beat rates of intervals. I think the faster intervals, 3rds, 6ths, 12ths, would be countable. Mark Krag RPT </pre> </blockquote> <pre wrap=""> You can figure out beat rates of fundamentals without too much trouble using any ETD that shows frequencies. Frequency ratios of pure intervals are 5th 3:2 3rd 4:3 6th 9:8 12th 3:1 Example (5th): A 440 E 659.25 Compare 659.25/3 and 440/2 (=219.75 and 220). Difference, .25, is the beat rate. -Mark Davidson _______________________________________________ pianotech list info: <a class="moz-txt-link-freetext" href="https://www.moypiano.com/resources/#archives">https://www.moypiano.com/resources/#archives</a> </pre> </blockquote> </body> </html>