This is Patti Smith's most authoritative work since the "Horses" days. She's always been a superb reader of her own work, and in this recital of her tribute to departed friend Robert Mapplethorpe she plumbs mysterious depths of emotion and artistry untapped by the wobbly albums that emerged in the wake of her 1990s return to performing. Kevin Shields of My Bloody Valentine provides simple, spare but never simplistic accompaniment, ranging from organ to effects-drenched guitar. The performances must have been magical, but this recording creates its own spell -- moody, powerful, touching and unbelievably intense.