“A Fool to Care may not have a concept as linear as some of Boz Scaggs’ other recent albums (2013’s Southern-fried Memphis, the jazz standards on 2003’s But Beautiful and 2008’s Speak Low), but it sure does tell a story. These 12 songs map out a concise history of American soul, with a heavy dose of New Orleans strut — including the title track (a hit for Fats Domino) and Huey “Piano” Smith’s “High”