The time: the summer of 1988. The place: the Roma Bar in Telluride, Colorado. In a few years, Phish will become the de facto successor to the Grateful Dead — a band more noted for its musically eclectic, super-improvisational, free form live shows than for its gold-status studio albums. Yet right now, in a small mining town venue that is figuratively a million miles from the arenas where they’ll one day perform multi-night engagements, the Vermont quartet of guitarist/vocalist Trey Anastasio, drummer John Fishman, bass player Mike Gordon and keyboardist Page McConnell are showcasing their songs to a half-dozen people. Among them is one Michael Lynch.