Today, for the first time in several weeks, I returned to Jazz Improv II, guitar and amp in hand. 12:30 rolled around, and our usual prof, Freddie Mendoza, took his seat in an unusual spot--off to the side. For this meeting of Improv II, and for the next several, students would be sharing their nuggets of wisdom with fellow classmates. When I heard last night who would be leading today's class, I just couldn't stay away: the stylist of the ivories, James Ringholm.