Question: Liam O'Connor is a multi-instrumentalist musician, described as "the Jimi Hendrix of the accordion", Hendrix was an American rock guitarist, singer, and songwriter, and which organization, that describes him as "arguably the greatest instrumentalist in the history of rock music"?
Sentence (from "The Jimi Hendrix Experience"): In April 1970, Hendrix, Mitchell, and bassist Billy Cox performed and recorded until Hendrix's death on September 18, 1970.
Relevant evidence: No