There's good reason that most listeners haven't yet met The Drifter, the tremendous first-ever solo album by Hammond B-3 organ master Mike Flanigin — it isn't officially released until August 21st. We've been fortunate enough, however, to have spent the summer with the LP, a collection of alternatingly gritty and atmospheric Americana songs driven by the Texas musician's nuanced playing and some special guests from his home state. ZZ Top's Billy Gibbons, guitar hero Gary Clark Jr. and punk godfather Alejandro Escovedo all make cameos, but even they can't overshadow Flanigin's B-3. It's the perfect record for late-night parties or all-day drives through the desert. J.H.