Michael Harrison

Key Takeaways

• Created a 24‑note‑per‑octave harmonic piano
• Revived just intonation within Western contemporary composition
• Studied with La Monte Young, bridging minimalism and microtonality
• Released 'In Flight' (1987) and 'Revelation' (2007) albums

Pulse Analysis

Michael Harrison’s musical journey was deeply rooted in a family of mathematicians, a background that informed his fascination with precise tuning systems. While an undergraduate at the University of Oregon, he encountered Indian raga and the concept of just intonation—a mathematically pure scale based on whole‑number ratios. This discovery sparked a lifelong quest to reconcile Western harmonic practice with the exacting intervals of non‑Western traditions, positioning Harrison as a bridge between academic theory and artistic expression.

In the 1980s, Harrison translated his theoretical insights into a tangible instrument: a harmonic piano featuring 24 notes per octave. This microtonal expansion, developed under the mentorship of La Monte Young, allowed him to explore intervals unavailable on standard pianos, producing a sound world that blended minimalism with richly textured tuning. His recordings, notably In Flight (1987) and Revelation (2007), serve as practical demonstrations of just intonation applied to solo piano repertoire, influencing a generation of composers who seek alternatives to the equal‑tempered system.

Harrison’s legacy extends beyond his recordings; his work catalyzed a resurgence of interest in microtonal music across academia and the independent music scene. Contemporary composers now cite his harmonic piano as a prototype for experimental instrument design, while streaming platforms have made his albums accessible to a global audience. As the industry increasingly values sonic innovation, Harrison’s blend of mathematical rigor and artistic vision continues to shape the future of avant‑garde and mainstream music alike.