<HTML>Eric Just to put two cents worth in here, I would have to say that sometimes we try to make life too difficult. I forgot who said it, but I agree with the comparison of the four singers. Because of the different tonal characteristics of the 4 pianos, even if you got all four of them to be perfectly in tune, they are going to sound different (unless you're also going to voice all four pianos to sound the same). And, again, I forgot who said it, but I agree that perhaps Stravinsky wanted all four of the pianos to sound slightly different, to give them each their own character. So give Lawrence a break, and just let him tune all four pianos to their own temeprament. Wim </HTML>