Clark and list, The Quiet Time uses sensor fingers called a TFT strip that are fitted under the keys just behind the frontrail punchings for the sharps. At this point keyboards are all close to the same width. I think the minimum width for a QuietTime is 47 1/2 inches. The TFT sensor strip is built in 4 sections of 22 notes each and can be centered and locked down on each 22 key grouping. As to playing for performance, the whole idea of the TFT strip is to measure the velocity of the key strike as well as tell which key is being struck. When set at the correct height, it will allow the player to play with a full variety of expression on each individual note. This means that a musical line can be brought out above the level of the surrounding notes just like on a real piano. The choice of 128 different voices includes some traditional and some nontraditional sounds. All PianoDisc products are MIDI compatible. The keyboard and action (such as it was in a square) is maintained to give the feel of going through let-off and bottoming out solidly while the hammer is stopped before actually striking the string. Unless the whole instrument has been rebuilt, you probably want the strings to be only cosmetic. The thing should never have to be tuned. If it is to play as a restored instrument, the QuietTime would still work just as well, but it would have to be maintained as a piano as well. Hope this clarifies some of this for you. I am sure someone at Music Systems Research/ PianoDisc would be happy to give you tons of info on the product. Paul
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