James Gurley (1939-2021) was an influential American guitarist known primarily for his work with the psychedelic rock band Big Brother and the Holding Company. Emerging in the 1960s, he was renowned for his innovative guitar techniques, which blended blues, rock, and avant-garde styles, helping to shape the sound of the San Francisco music scene. Gurley's notable works include his contributions to the band's self-titled debut album and the critically acclaimed "Cheap Thrills" (1968), which featured Janis Joplin's powerful vocals. The album is often hailed as a landmark in the psychedelic rock genre and played a significant role in popularizing the counterculture movement of the 1960s. His unconventional guitar work, characterized by feedback and distortion, laid the groundwork for future rock musicians, influencing genres such as punk and alternative rock. Gurley's style challenged traditional guitar playing and showcased the instrument's potential for expressive soundscapes. Throughout his career, he continued to perform and record, leaving a lasting legacy as a pioneer of psychedelic music and a key figure in the evolution of rock guitar.