---------------------- multipart/alternative attachment A double augmented 7th is actually a little wider than a perfect octave. On the piano you can't make the difference of course but B# is really one comma higher than C. And Dbb is one comma lower than C so no a diminished second is not a perfect unison. Jean-Luc Matton Albuquerque NM ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/d9/30/21/2e/attachment.htm ---------------------- multipart/alternative attachment--
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