St. Petersburg Jazz Festival Any self-professed jazz fan who does not show up for at least one or two of the concerts that are part of the St. Petersburg Jazz Festival (SPJF )over the next four days has no standing to bitch about the Bay area’s dearth of jazz programming. SPJF is a grass-roots production without marquee names, but that shouldn’t matter. Jazz performance is in part about discovery. So it stands to reason that responsible jazz fans should adopt a similar sense of discovery—and drop $25 (at least once) to witness some very worthwhile jazz in a top-notch venue.