DLLegg@aol.com wrote: > > Hi Warren, > One possible solution to the mystery that I have found to be true, tuning in > Florida. > ------Turn the ceiling fan off!------ Yes, no? > Debbie Legg Absolutely Debbie, The fan blade chops off pieces of piano sound and sends it back to our ears with a doppler-shifted pitch! Just like the old submarine movies where you hear the SONAR sounds in the background. When sound is coming toward you the pitch is higher than when it is going away. When it mixes with the sound your ear gets directly from the piano--instant false beats! Thanks for answering! Warren -- Home of The Humor List Warren D. Fisher fish@communique.net Registered Piano Technician Piano Technicians Guild New Orleans Chapter 701
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