The Bootleg Series, Columbia/Legacy’s ongoing multi-disk issues of concert recordings by Miles Davis, is among the treasures of the recent jazz catalogue. The fourth volume, Miles Davis at Newport, 1955-1975, which comes out next Friday, is the most revealing of them to date. That’s because it reflects crucial musical ideas and decisions in the twenty crucial years of Davis’s musical development, from the age of twenty-nine through forty-nine—and his personal evolution and musical revolution is itself one of the grandest artistic dramas of the dramatic time.

Read more at The New Yorker.

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