Jonathan, I agree that you should eventually aim for a temperament based on all these intervals at once. I think a good place to start, assuming you're setting a temperament from F to F, is to learn to recognize the correct setting of the F to A major third. Once you can nail that, learn the A to C# rate. If you can set those intervals correctly, you have the framework for a good temperament, even if you fill in the gaps with fourths and fifths. Even if you're doing different temperaments, you need to eventually train your ear to do thirds. It's actually fun to be able to "nail" thirds, especially when you remember that it was once predicted, in the days before Dr. White, that it was too much to ask of tuners. Now we all do it. It just takes ear training by much repetition and listening. Mark Graham Baldwin-Wallace Conservatory of Music Berea, Ohio
This PTG archive page provided courtesy of Moy Piano Service, LLC