Six Western Tuning Systems in Two Categories
Restrictive Temperaments Limited modulation - maximum purity. (Closest to just intonation) not all notes tuned as sharps can be used as flats .
Just Tunings Meantone Temperaments ModifiedMeantoneTemp.
Unrestrictive Temperaments Unlimited modulation - all the keys tuned as flats can also be used musically as sharps.
Pythagorean Temperaments Well Temperaments Equal Temperament
Our discussion today will focus on Well Temperaments typical of the eighteenth and nineteenth centuries as compared to the twentieth century practice of Equal Temperament.