Upper-crust audiophiles in South Florida moaned December 31 when WTMI shed its 30-year tradition of playing classical music in favor of a format that caters to the younger techno-dance crowd. It morphed into "Party 93" as executives explained that classical fogies just didn't spend enough money with their advertisers to keep them going. Party now crows that it plays fewer commercials than its competition, WPOW-FM (Power 96.5). But all is not lost for those who know that Claudio Monteverdi, Michael Praetorius, and Cesar Franck are not Marlins relief pitchers. Boynton Beach's WXEL-FM (90.7) began Saturday matinees of classical broadcasts in early February. And WTMI's classical tradition continues on-line at its Website, which links to Beethoven.com's Internet radio.