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 "Jimi Hendrix"): James Marshall "Jimi" Hendrix (born Johnny Allen Hendrix; November 27, 1942 – September 18, 1970) was an American rock guitarist, singer, and songwriter.
Relevant evidence: No