This book is for musicians who already read music — whether you are a composer, arranger, or a serious self-taught musician. The Harmonic Matrix was designed for one purpose: To give you complete harmonic visibility while you compose. If you understand harmony but still hesitate while choosing chords… If you hear more than you can immediately write… If you keep rewriting the same passages or falling back on familiar progressions… The problem is not your knowledge. It’s that, in the moment of composing, harmony becomes invisible. The Harmonic Matrix is not a theory book. It is a practical visual system meant to stay open while you write. Instead of calculating harmony mentally or experimenting blindly with chords, this system reveals all functional harmonic possibilities for a given note within a scale — instantly. You stop guessing. You start choosing. What makes this system different: Covers everything from triads to extended harmony (7ths, 9ths, 11ths, 13ths), including practical voicing control Includes suspended chords (sus) and functional extensions Works across all styles: classical, jazz, cinematic, contemporary, and beyond Applies to 15 major scales and 15 harmonic minor scales Uses reverse harmonic engineering: Given a scale and a melody note, the Matrix shows every possible chord that can harmonize it Introduces harmonic cycles and structural tools that help you: Avoid imitation Develop your own harmonic fingerprint Compose with intention instead of habit With the Harmonic Matrix, you will: See all valid harmonic options for a note at a glance Reharmonize without restarting the piece Break away from predictable progressions Work confidently in any key using one consistent visual logic Compose faster without sacrificing musical depth This book is for you if: You can read music and understand harmony You compose or arrange in any genre You’re tired of “trying chords” instead of deciding You want harmony to support your ideas, not slow them down You want a system you use, not a book you read once and forget This is not a shortcut. And it is not a collection of formulas. It is a map of harmonic possibilities. You still compose. You still decide. But now — you can see everything. Stop guessing. Own the map.