Joni Mitchell has long dabbled in the jazz world, forging alliances with the likes of Charles Mingus, Jaco Pastorius, and Wayne Shorter, while incorporating elements of fusion into her more intrepid recordings. Both Sides Now, however, comes at jazz from a different angle than the experimental likes of Mingus and The Hissing of Summer Lawns. Here is Joni the chanteuse, tackling smoky standards such as "At Last," "Sometimes I´m Happy," and "Stormy Weather" in the embrace of lush pop arrangements that owe a debt to Nelson Riddle and Gordon Jenkins, though some stray over the line from stately into staid. The focus here is on Mitchell the vocalist, and she displays a real commitment to the music. She has the chops and the smarts to tackle these staples, but at times she seems intimidated by their illustrious pedigrees. Two of Mitchell´s own songs are revived here--"A Case of You" and the title track. The results are mixed: the former tak