<HTML>In a message dated 08/03/2002 7:46:14 AM Central Daylight Time, owner-pianotech-digest@ptg.org writes: <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Subject: Re: Musical Soundwaves Forgot to ask... just out of curiousity does Northwestern hold some kind of patent on the loudness switch then ?? Are they making tons of money on this invention  ? This was a government sponsered study was it not ? If I had a dollar for every one of those thingys installed...grin. Cheers ! RicB </BLOCKQUOTE> Ah, yes!  So true.  But no, the study was not done at Northwestern, that particular person who had worked on it some years before happened to be on the faculty at Northwestern at that time, that's all.  I THINK the study was done at the U. of Chicago (probably govt funded).............but that's only in my increasingly dim memory, so I wouldn't make book on it!  Also, he didn't say who it was that suggested that they use musicians.............I gathered it was someone who was part of the study, but obviously not wedded to the original premise. Back at ya! Stan Ryberg Barrington IL mailto:jstan40@aol.com</HTML>