14 mm above the white keys at rest is quite the climb upwards. Lots of techs seem to gawk at 12 mm which usually leaves the depressed black 2 mm higher then a neighboring white key at rest. If the specification you ask for exists, then no doubt like all piano specifications it is viewed as a rather general rule of thumbs. Personally, I like at least 0.5 mm, but I dont like to allow the blacks to get more then 12 mm over the whites when all is a rest. This range allows for plenty of freedom relative to aftertouch and other regulation concerns as well RicB James Perkins wrote: > Is there a recommended height above the white keys for black keys when > they are depressed? In other words should they be say 14 mm above the > white keys with a 10mm dip to about 4mm in the down position? Or is it > 'piano specific'? > > I would appreciate your comments. > > James Perkins > 42 Marlee Road > Parklands > WA 6210 > Australia > > 08 9581 6354 > Mobile 0401674447 > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html http://www.hf.uib.no/grieg/personer/cv_RB.html
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