How to reproduce sound of piano

On the subject of realistically recording the grand piano, I don't know that it's particularly difficult rather than the engineers being scared to do it without compression?
Listen to Keith Jarrett- The Koln Concert on ECM (recorded live) to see how realistically you can transfer the concert grand to vinyl or Masaru Imada-Piano on Three Blind Mice.
The best recorded classical concert grand I've yet heard is Liszt Sonate h-Moll B Minor by Daniel Barenboim on Deutche Grammophon.

My Apogee Scintillas, source a no oversampling DAC, can not only do a piano accurately from the lowest A key to the highest C, but at full volume as well.

We have a nice piano too.

I agree with Jax2 and Tobias. Vinyl played through horn speakers with tube amplification are the way to go for things that cover the full frequency range all the time, like solo piano music, or large orchestral or opera.

Er, ah, I didn't say that. I don't listen to vinyl anymore (except in friend's systems), but certainly enjoy it. I also said nothing about horns, though I've enjoyed those in the past as well, and remain a big fan. I'm not sure I'd agree with everything you've said. I'd agree that solo piano is well served (or can be) by the system topology you propose. I'd have to say that my experience, at least with SET amplification and horns, is that it would not do the scale and dynamics of opera or large-scale orchestral music as much justice as I've heard done with other means of amplification (though it certainly can sound quite good). As far as other tube amps (push/pull, pentode, etc.) my own experience has been that the larger scale, more dramatic/dynamic music that is more densely layered seems to be better served by various SS amps I've had and or heard, though OTL tube amps have occurred to me to be a contender as well. Though I used horn loaded speakers for many years, I no longer do because of space limitations (I haven't been fond of any of the smaller horn solutions I've heard, and just don't have the space in my current room for the horns I'd like). I'm currently using Coincident Super Eclipse III's (not horns), which I like very much. Perhaps what we do agree on, and what I was trying to point out, is that one does not necessarily require high-watt SS amplification to get close to a convincing sound of piano. It seemed like early posts seemed to focus on that perfectly reasonable approach, but I thought it should be noted there are others. YMMV, as always. I don't believe there's only one way to go to get closer to realistic piano as far as the system-approach is concerned. I think everyone's version of what "realistic" piano sounds like may be quite different as well.

I actually have a 1962 Steinway concert grand in the living room of the house I live in. (It's a small house, but with a large (30 x 25) living room with high ceilings (15 feet), and the piano fits quite nicely with lots of empty space around it,) I'm not much of a piano player, but I do love the sound of a really fine piano.

If you were to hear what a piano like this actually sounds like in a living room, I don't think anyone here would be claiming that his system quite reproduces that sound.

Well, if you frame the question that way, I don't know any system that really meets the exact reporduction standard. You can go to any high-end stereo store or audio show and listen to many different very high-end systems and no two will sound the same. Does any particular one exhibit exact reproduction of the live instrument? Does many of them do a good job? I would say no the former and yes to the latter question. Of course since the original poster is pretty much focused on just one insturment he stands a better chance of getting a system optimized for that criterion. Across the board of all insturments and vocals, I don't belive it's possible.