Much of the most widely admired piano repertoire, for example, that of Haydn, Mozart, and Beethoven, was http://www.pianocovers.com/Grand-Piano-Covers-s/3.htm composed for a type of mechanism that is rather at odds from the neoteric instruments on which this air is accord performed today
Small studio upright acoustical pianos with only 65 keys have been manufactured for cause by roving pianists. Hackneyed as "gig" pianos and still containing a cast robust harp, these are comparatively lightweight and can be easily transported to and from engagements by only two men