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

heinrich poos

harald weiss

william bay

various

matthew culloton

crawford gates

paul cardall

kurt hessenberg

gyorgy ligeti

kurt hessenberg
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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