Ok Now I see what you're taliking about temperment. From what i'm getting out of samples are pefect tuning and its a blast to play something thats perfectly in tune alway's. Piano tuners have their own way of tuning, some tune perfect fifth's, some tune prfect fourth's, some care about the thirds as they go up, some don't. I found out that if tuners don't use a tuner machine, then their almost alway's off temperment, but nevertheless can still be in tune. I use an acu tuner for that reason.
I cannot depend on somones ear anymore. Supposedly piano US tune at 440 and europe at 880. That was an old temperment, I don't think europe tunes at 880 any more. But Real players unless they're from LSO or VSO or NYSO or others, they are gonna play slightly out of tune from here to there. Thats why these samples are a blast. I've gotten so spoiled by hearing perfect tuning, I can hear real strings immediately because of their out of tuning. Only the very best stay completely in tune. Isacc stearn could be heard from his slightly out of tune playing. He was an exception. And the only one.