<HTML>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</HTML>