Dear List, There are some great articles in this month's Journal. One is a detailed analysis by a Petrof acoustical engineer of the mathematical modeling of string vibrations, *including* an insight on the perplexing behavior of the bridge as a termination (just wait 'til Ric gets back from vacation!). He uses the example of an ancient Greek guitar, where one string termination was a flexible rod. In a piano, only the tuning pin side is a fixed termination, whereas the bridge end moves, thereby changing the effective speaking length. Good stuff! And he has experiments to back up his findings! This is Part 1 of a series. In another article, Owen Jorgensen proposes that the layout of naturals and sharps on the keyboard gives a visual clue to intervals in a well temperament (if the piano were designed for equal temperament, there would simply be alternating black and white keys across the board). This issue will take some chewing to digest (metaphoric, of course). Excellent articles. --Cy Shuster-- Rochester, MN
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