<html> At 04:35 PM 7/3/02 -0400, you wrote: <blockquote type=cite class=cite cite>Hi , I tuned a piano today at a church I've been tuning at for years.The new music director happened to walk in,and introduce herself.She says she has perfect pitch,which I did'nt verify.(I always want to check but don't) What I was wondering is,what is perfect pitch related to? Is it equal temperment,or some other temperment.If you tune a note at equal,it will be different ,the same note at another temperment. Inquiring minds want to know, Hazen Bannister </blockquote> In a discussion of perfect pitch, you shouldn't concern yourself about temperments.  I know that there are several temperment enthusiasts on this list, but in the real world, to most people,a Bb is a Bb and an F# is an F#.  Most people don't hear different temperments.    I have known several people with PP over the years and generally their resolution is not that fine - no one I met could ever tell that A is 439.5 and not 440, although I have heard that there are such people. The thing to remember is that they can hear other instruments too - violins, saxophones and piccolos all have Bbs and F#s and those instruments don't have piano temperments.   Also, contrary to lay beliefs, it is a physical impossibility for a band, orchestra, whatever... to be "in tune".  "In-tune-ness" is a matter of opinion. Perfect pitch is an INBORN ability to name a pitch or chord with no external reference.  I have read ads of home courses claiming  to be able to teach perfect pitch but I am skeptical. Whenever somebody has the nerve to claim perfect pitch to me, I will always test them.  It's a parlor trick to them, but I'm eternally amazed. -Matt</html>