Interactive Circle of Fifths

The Interactive Circle of Fifths is a comprehensive digital music theory tool designed to visualize and audiate the foundational relationships within Western harmony. It transcends the static diagram found in textbooks by providing a dynamic, clickable interface that allows musicians to explore chord progressions, scale structures, and key relationships in real-time. The core value proposition lies in its integration of visual music theory with practical auditory and instrumental application. It is engineered for music students, composers, songwriters, and instrumentalists seeking to deepen their theoretical understanding and apply it directly to their instrument. By centralizing key concepts like scale harmonization, chord function, and modal interchange into an interactive environment, the tool accelerates the learning process and serves as an indispensable reference for both practice and creative composition. Users can instantly see how chords within a key relate, hear their sonic character, and study the precise fingerings on piano and guitar, thereby bridging the gap between abstract theory and tangible performance.