Singer-songwriter-guitarist Boz Scaggs has kept a fairly low profile since his heyday in the '70s and '80s--a circumstance more than rectified with Greatest Hits Live, a great-looking, great-sounding concert recorded in San Francisco in 2004. For the most part, this is Silk Degrees-style Boz, drawing from a large catalog that favors ballads (some quite lovely, like "Harbor Lights," "We're All Alone," and "Look What You've Done to Me") and deft... see more