Then, there is Joni’s voice. In 1969, she sang about clouds and love with a sense of wonder. In the 2012 high-res version of the 2000 performance, her voice is lower, weathered by time and cigarettes, and heavy with authority. The FLAC format captures every nuance of her phrasing—the slight rasp, the deliberate pauses, and the weary vibrato. It turns the listening experience into an intimate encounter. When she sings, "I really don't know life at all," the clarity of the high-bitrate audio makes the irony sting; she clearly knows much more now than she did thirty years prior.

: Includes notable guest performances by Herbie Hancock (piano) and Wayne Shorter (soprano and tenor saxophones).