I've mentioned my new piano concerto several times on the forum, and I now have a GPO version of the first movement posted on my website.
Be aware of a couple of things. First, this is a large download--almost 12 megabytes. The first movement is 13 minutes long. The whole concerto is close to 35 minutes, my longest piece to date.
Second, this is not really a definitive version, and was not intended to be. My main goal was to provide a "practice tape" for the soloist and conductor, and for that purpose it's sufficient. Most of this comes straight from a MIDI file generated by Finale, with human playback turned on. I did a little tweaking on the file in Sonar, but due to time constraints I didn't polish it as much as it needed. The piano sounds stiff in places, and the pedaling could definitely be improved. So if you approach this as a "preview" of the concerto, it will make more sense.
If, after reading all that, you still want to hear it, you can do so here: