This deluxe 4-CD box set from Sony Music brings together the seminal Columbia recordings of Terry Riley, a visionary composer whose influence on minimalist and electronic music continues to ripple through generations. Thoughtfully presented with archival materials, this collection offers an essential document of Riley's most transformative period when the pulse of innovation met the possibilities of high-fidelity sound. This box set is more than a collection of recordings it is a rare window into a time when the avant-garde found a home in major-label studios and groundbreaking artists like Riley were given space to explore uncharted sonic territory. From his mesmeric electric keyboard and saxophone improvisations to his pioneering use of analog tape delay, every track here pulses with the spirit of experimentation. Starting with the original 1968 recording of In C, captured at Columbia's legendary 30th Street Studio, by revered engineer Fred Plaut, the set includes four seminal works by Riley that helped shape not only the minimalist movement but much of the late 20th century avant-garde landscape.