Hi Dick: There is a battery powered motorized piano moving dolly that moves on a cleated rubber track called the Roscoe Piano Dolly invented by two brothers in Florida whose last name is Roscoe. At a NAMM show, I saw it climb a mock stairwell with ease with a Steinway D loaded on it! They claim that it will travel across mud, snow, sand, in addition to climbing stairs. It has been invented for quite some time now, so I believe it is time tested. However, the advertised price is 3995.00. When I first saw it about 7-8 years ago, it was only about 2,000.00. It must be popular! They run an ad periodically in the back or a magazine called, I forget, either Music Trades, or MMR (Musical Merchandise Review). I have some of these magazines at work and could get you an exact address/ph# if needed. Just let me know! Hope this helps! Devlon Bignault Western Ky. Univ.
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