By the spring of 1989, the Grateful Dead were operating at a genuinely remarkable level of commercial and artistic vitality. The "Touch of Grey" wave had crested a couple of years earlier, and the band had settled into a new normal: massive arenas, a younger fan base mixing with the lifers, and a lineup that had crystallized around Brent Mydland's muscular keyboards and soulful voice. Brent was hitting his stride in this period — confident, emotionally raw, and increasingly central to the band's identity in a way that felt earned. Jerry Garcia, Bob Weir, Phil Lesh, Mickey Hart, and Bill Kreutzmann were all in solid form heading into this spring run, and the Dead were road-hardened in the best sense of the word. The Rosemont Horizon, just outside Chicago near O'Hare, was a classic late-era Dead venue — a large multipurpose arena that could hold around 17,000 people and regularly drew the kind of devoted Midwest Dead faithful who traveled hard to be there. Chicago and its surrounding region always seemed to bring something out of the band, and the Horizon shows from this period are generally regarded warmly in the tape trading community. The room wasn't intimate, but it wasn't sterile either, and the crowd energy at these Illinois stops tended to be palpable on recordings.
What we have in our database from this night is "Cassidy," which tells you something encouraging about the shape of this show. A song built on the structural genius of John Barlow's lyric about simultaneous birth and death — written in the early '70s and named for both Cassidy Law and Neal Cassady — "Cassidy" had become one of Weir's signature vehicles by this point. Its galloping rhythm, that insistent forward momentum, made it a natural first-set opener or energizing centerpiece, and a great version finds Weir leaning hard into the urgency of the thing while the rhythm section practically levitates underneath him. Listen for how Brent voices the chords in behind Weir's vocal — in 1989 he was particularly good at filling that space without cluttering it. If you're coming to this one fresh, let the crowd tell you something about where you are in the show when "Cassidy" arrives. The Midwest faithful knew what they were hearing, and that recognition tends to come through on tape. Whether you're working from a soundboard or a clean audience source, this is a show worth a full sit-down listen.