No, and It wouldn't make a difference if I did either, because sound stage and room ambience dramatically alter one's perception of the character of a given sound. There,s really no way to compare the experience of the live sound emunating from the soundboard of an acousric grand piano into a room with even the best recorded sound heard from 2 speakers. As much as I'm satisfied with the Tyros 4's SA Concert Grand voice sample, it can't compare with a real Steinway or even the recording of one. Go to Steinway Hall in NYC or a piano store and play a Yamaha acoustic grand next to a Steinway acoustic Grand and you'll easily hear the difference in the distinct character of each brand. Yamaha doesn't include a Steinway sample in T4 afterall. That said, rumor has it that a Tyros 4 UVN "3rd party sample" offering of a Steinway Grand may be in the works. If and when that becomes available, that may offer a better "apples to apples" piano sample comparison.