Larry Coryell, the legendary jazz guitarist widely known as the Godfather of Fusion, died in his sleep on Sunday due to natural causes, just one day after his final show at the Iridium in New York City.

A native of Galveston, TX, who spent much of his childhood around Seattle, WA, Coryell was a pioneer of jazz-rock and fusion, gaining fame for his unique and moving tones and lyrical guitar lines. Inspired by everyone from Chet Atkins to Chuck Berry to John Coltrane to The Beatles, Coryell formed his own band in the late ’60s, The Free Spirits, who helped him pioneer early jazz-rock fusion sounds. His landmark album came in 1969 with Spaces, which helped kick off the fusion movement of the ’70s and featured the likes of John McLaughlin and more.

Coryell released over 60 solo studio albums throughout his career and continued performing and recording up until his death. The guitarist was planning a summer tour this year with his band The Eleventh Hour, with whom he recorded a new album, Seven Secrets, set for release on June 2.