---------------------- multipart/alternative attachment Well, make that twice I replied to Isaac instead of the list: In a message dated 8/19/2004 11:36:54 PM Pacific Standard Time, oleg-i@noos.fr writes: I recall an ingenious device from Sanderson, that anybody can make its own, these are 2 rules (of different height) made of strips of thick paper where the spacing at the end of the key is marked with the partial series enlighten. The 2 strips can be used one at the lower note of the interval to be tested and the other on the highest, and the scale show immediately where the partials are coincident. Just last week I made such a device (in minutes, out of poster board) for my PTG chapter tuning demonstration. I think everyone should have one until they are facile with the partial series and coincident partials. I gave credit to Jim Coleman, Sr., because that's who my fuzzy memory contained as the first person I saw use it. Was Al Sanderson actually the first? It's so clever I would like to credit the right person. Bob Davis ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/3e/78/ba/29/attachment.htm ---------------------- multipart/alternative attachment--
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