Louis Jordan 1938-1950 (Fremeaux & Associés, two CDs). Imported from France, a near-perfect selection of thirty-six 78 sides by the singer-saxophonist and his Tympany Five, the jumping combo whose hard-swinging brand of populist jazz helped to set the musical agenda for rhythm and blues and early rock and roll. Not to worry–most of the big hits are here (“Choo-Choo Ch’Boogie,” “Is You Is or Is You Ain’t My Baby,” “Saturday Night Fish Fry”). If Jordan’s joyous music doesn’t make you smile and/or pat your foot, you need an intervention, or maybe a lobotomy (TT).