January 2003 Vince Hyman: Last week (1/20/03), I had the great pleasure of meeting Roy Pertchik in his New York office/home. Roy has invented and patented a unique system of keeping track of the notes on a keyboard-—and he commissioned Nico van der Plas to build a vibraphone using that system. You’ve probably read Roy’s and Nico’s postings on his new instrument, but I thought it might be of interest to some to get an outsider’s perspective, first on the chromatic arrangement and then on the vibraphone.          Roy’s vibraphone has a 3.25 octave compass (E-flat – … Continuer la lecture de On Roy Pertchik’s three-color vibraphone →