If you've heard other Spring 1989 shows like 4/15/89 or 5/28/89, you may recall Trey encouraging people to go hear "the Johnny B. Fishman Jazz Ensemble". These gigs probably weren't recorded because the group were likely without their crew or any sound system. I can imagine a cozy restaurant with soft lighting, the band in "business casual" outfits, tucked into a corner or maybe out on a patio, playing "Take The A-Train" and "Misty" while patrons enjoyed a glass of chablis with their filet sole.