Programmers and promoters of jazz know the problem: it’s “jazz”. The word defies convenient definition. For some, it’s swinging entertainment; for others, an intellectual art demanding studious consideration.
Jazz is also a minority music, so festival organisers frequently schedule pop and rock bands on their programmes, particularly those appealing to an older demographic.
Which explains Ringo Starr and His All-Starr Band playing and guest spots to Joe Walsh of the Eagles.