
Discover key insights about the composition, arrangement, and composer, see what's included, and find information to enhance your practice and performance.

dionisio aguado


john m. feierabend

paul wertico

jordan grigg



john cage

mary ann froehlich


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New · Grammar of Music
Grammar of Music is our new interactive music theory system. Every interval, chord and progression plays as you read, so you train your ear while you learn — and every score you pick up starts to make sense.
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