<HTML>Exactly my point! String players (generally) believe that a "just" major third is wider than tempered. Therefore, many performances of Bach Partitas and suites are done in these wider than tempered major thirds, including my own teacher! This seems impossible, but it is true. I observed a rehearsal of the Juilliard Quartet, the mentors for most American ensembles, in which every time a third seemed out of tune, they attempted to fix it by raising the third  (really high) to make it "pure".                                                Will talk some more,                                                Michael Meade, RPT</HTML>