Joni Mitchell’s 2022 Newport Folk Festival appearance reminded fans of the singer-songwriter’s power as a live performer. There are plenty of earlier documents of her onstage dynamism, too, such as the urgent takes on her early-career standouts on 1974’s Miles of Aisles and the fusion explorations of 1980’s Shadows and Light. Early bootlegs of Mitchell’s intimate club sets evince her ability to command a small room.