A folk singer with a poet's spirit, Joni Mitchell is among music history's most poignant and influential songwriters. A veteran of the '60s folk circuit, Mitchell first came to prominence as a songwriter, composing oft-covered tunes of the era "Chelsea Morning," "The Circle Game," and "Both Sides Now." By the time Judy Collins brought the latter into the charts in 1968, Mitchell had released her David Crosby-produced solo debut, Song to a Seagull. Mitchell became part of Los Angeles' folk-rock scene, but worked from a different compositional aesthetic, utilizing alternate guit...