It plays well at very low levels. I uploaded a short video clip showing at which point the note stops playing. Of course with the computer its a little hard to compare with real life, but it seems to play at very quiet levels better than most uprights. http://www.youtube.com/watch?v=9dBfDkw8Jc8 It is also an example of my new minimalist composition. Enjoy... On Tue, Jul 7, 2009 at 4:40 PM, Ed Sutton <ed440 at mindspring.com> wrote: > Ryan- > > As you play more and more softly, every action reaches a failure point > where the response becomes erratic, so there is a limit on how quietly you > can play dependably. Alexander and I are wondering if this action is > different from a standard Yamaha vertical action in this respect. Perhaps it > repeats faster at a cost of less pianissimo response range? > > The purpose of weights in the back of vertical keys is usually to get the > key back down so that the jack can reset. If you add keyweight to increase > touchweight, you are pumping lead that doesn't do anything to the overall > action response. If you add a small amount of weight to the hammer, it will > increase the dynamic touch of the piano, and perhaps improve the sound as > well, even thoughj the static downweight will still measure low. > > Ed > > ----- Original Message ----- > *From:* Ryan Sowers <tunerryan at gmail.com> > *To:* pianotech at ptg.org > *Sent:* Tuesday, July 07, 2009 6:12 PM > *Subject:* Re: [pianotech] Interesting action on Yamaha YUA > > It does have a very light touch. I just took some downweight measurements > and it's around 43-45 grams. Upweight is around 23 grams so the friction is > around 10. I'm contemplating adding some weight at the back of the keys but > I kind of like how it plays. If somebody is looking for a light action this > would be the one. > > Alex: I don't understand your analogy to the grand action and feeling of > lack of gravity. When you refer to spring tension being neglibible, do you > mean the hammer return spring or the jack spring? > > On Tue, Jul 7, 2009 at 10:49 AM, Alexander Lass <lasspiano at gmail.com>wrote: > >> Ed, >> >> This is the first question that came to mind when I saw the design. To >> make it analogous to a grand action, I think the feeling would be similar to >> not having any gravity acting upon the hammer assembly until the point of >> let-off. Perhaps the spring tension is such that any sensation is >> negligible, but it does pose an interesting question. >> >> Ryan, any thoughts? >> >> Alex >> >> On Mon, Jul 6, 2009 at 9:38 PM, Ed Sutton <ed440 at mindspring.com> wrote: >> >>> Ryan- >>> >>> What is the effect on pianissimo playing? >>> >>> Ed Sutton >>> >> > > > -- > Ryan Sowers, RPT > Puget Sound Chapter > Olympia, WA > www.pianova.net > > -- Ryan Sowers, RPT Puget Sound Chapter Olympia, WA www.pianova.net -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090707/862eb127/attachment.htm>
This PTG archive page provided courtesy of Moy Piano Service, LLC