You could mistake JD McPherson for a revivalist, given how few other contemporary artists are likely to assert, as he boldly does, that 'Keep a Knockin' by Little Richard is the best record ever made. However, in a very real sense, McPherson is much more a pioneer than roots resuscitator. On his sophomore album 'Let the Good Times Roll,' JD is knocking at the door of something that has arguably not previously been accomplished a spirited, almost spiritual, and very artistic hybrid that brings the forgotten lessons from the earliest days of rock 'n' roll into a future that has room for the modernities of studio technique and 21st-century singer/songwriter idiosyncrasies.