Dear Steven, I do not have perfect pitch and have been tuning unequal temperaments on pianos, fortepianos, harpsichords and clavichords since Owen Jorgenson's first book came out. These experiences of tuning and then listening to these instruments and the music that we're all familiar with in equal temperament (but most of the composers never conceived of in equal temperament) have been most enriching for me and have helped me understand and tune equal temperament more accurately rather than confuse me. When I started to learn to tune equal temperament, I was studying violin (just intonation)and I found the conflict untenable and stopped with the violin until I had equal temperament secure. So, if you want to make a living tuning (equal temperment) and don't feel secure, you may not want to listen to anything else. Once I had equal though, learning other temperaments has helped me keep interested in tuning and hearing music performed closer to the way its composer would have heard it performed has often been very exciting. Probably it is best for most customers to keep any given instrument at one pitch in one temperament for the sake of stability. So, go for it, open up those ears. Best Wishes Rob
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