Fans of vintage jazz can thank Cherry Red's él label for a number of recent reissues from such artists as Cal Tjader, Dave Lambert and Jon Hendricks, Herbie Mann and Antonio Carlos Jobim. In a Latin Bag and Saturday Night/Sunday Night at the Blackhawk combines two albums on one CD from Latin jazz pioneer Cal Tjader. The vibraphonist/percussionist recorded these long out-of-print albums in 1961 and 1962, respectively, at Verve under the aegis of future CTI chief Creed Taylor. By the time he