At Newport, the weathering old mansions of the rich still brood by the sea, and outsiders half expect to meet ladies in ankle-dusting tennis skirts escorted by blades in gaily banded boaters. But last week Newport's narrow streets were thronged with loud-shirted bookie types from Broadway, young intellectuals in need of haircuts, crew-cut Ivy Leaguers, sailors, Harlem girls with extravagant hairdos and high-school girls in shorts. They were cats. From as far away as Kansas they had come to hear a two-day monster jazz festival.
The Newport wingding was further evidence that jazz is enjoying its biggest boom in years, with record...