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

james d. ployhar

linda spevacek

billy joel

james d. ployhar

james d. ployhar

christopher mangiaracina

mark hall

james d. ployhar

robert sheldon

james d. ployhar

james d. ployhar

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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