The answer is.....
1 - Fazioli F308
2 - Steinway Model B
3 - Yamaha S6
Many of you got this pretty quickly, and I was especially impressed by @CyberGene 's first response, which hits the nail on the head:
CyberGene I am only sure about the 2 being Steinway since it has this typical soft velvety tone that is very recognizable. Now, 1 is bright all around, whereas 3 has kind of metallic zing on top of a very dull overall sound. Based on that I would say 1 is the Fazioli which I've only heard on various sampled libraries and digital pianos and my impression is it's just too in-your-face sound that is evenly bright and without too much dynamic or frequency contrast throughout the tone development.
When I was making the Fazioli library late last year, he mentioned that Fazioli's sound bright in all ranges, and I began to notice this as well. The Steinway has a darker, thicker sound, with less ring-ey harmonics, and the Yamaha has more prominent overtones, which makes it "cut through a mix" as Yamaha's are known for.
QuasiUnaFantasia And I'm now tending towards thinking no. 1 is the Fazioli, because the bass was much more pronounced than in the other two.
I thought that the Chopin would show that the F308 is a 10 foot long piano, while the others are 7 feet long. You can hear the lowest bass notes are not muddy in Piano 1.
Anyway, when I get a chance, I'll post some spectragrams to see if it matches our expectations.