An experiment I did at Gettysburg College gave predictable but interesting results and shows how significant a role location plays in tune stability. Two Yamaha U1 pianos both bought at the same time. One in a music theory classroom that had constant air movement and variable humidity just did not hold tune long at all. The other in a faculty office that had virtually no air movement and a very stable humidity/temp., hardly needed even a touch up from one tuning time to the next. To demonstrate to the complaining theory students that it was a bad environment and not the technicians fault, I exchanged the two pianos. Sure enough the stable piano moved from the faculty office became very unstable and the unstable piano moved from the theory room became stable. This does not address the theory and dynamics of unison stability but it does show how important a stable environment is. Ron Engle, RPT Dillsburg, Pa. ___________________________________________________________________ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj.
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