Assuming you can read music and therefore visually recognize pitches and rhythms, can you also sing musical lines, sing harmonies, play melodies on a single-line instrument or play many lines together on a multi-line instrument such as the piano, or hear music in your head while looking at a score? These physical aspects of music make it real and not just dots and lines on sheets of paper. These aspects allow us to truly appreciate music at the deepest level. Without the skills mentioned above, music represents a simple entertainment. With them, music becomes a profound experience. And this is what the book you're about to read helps makes possible.