The most historic jam session in the annals of jazz took place one hot day last week in San Francisco's Geary Theater.
Some 1,500 devotees thronged to hear it from all over northern California, from Los Angeles, even from the East. They raised the roofbut in a solid manner: they were no mere swarm of jitterbugs buzzing before the latest of the many swing band sensations. They were mostly seasoned jazz tasters who had gathered to sample vintage New Orleans music produced by a group of the Negroes who had been in that city when jazz was young.
The venerable band that played...