Finally! An eBook that is interactive, fun, and a great way to learn music theory! This book really pushes the boundaries of music theory and is essential for anyone interested in learning music. Great for the classroom, this would be a wonderful book for all students! I’ve always loved the Essentials of Music Theory publications from Alfred, and now this is availble in such an intuitive interatcive format! You can draw, you can submit answers, you can actually interact with the book! Amazing!!! And how could it get any better? $9.99!! What a deal!! i’m going to suggest this book to all my students!!