By the summer of 1981, the Grateful Dead had settled into a remarkably productive groove with the lineup that had coalesced around Brent Mydland, who'd joined in 1979 following Keith Godchaux's departure. Brent brought a harder-edged, blues-and-rock-inflected energy to the keyboards that pushed the band in a slightly more muscular direction than the Godchaux years, and by '81 that chemistry was fully baked in. Jerry Garcia's playing remained incisive and exploratory, Phil Lesh was anchoring things with his characteristic melodic bass runs, and Bob Weir and the rhythm section of Bill Kreutzmann and Mickey Hart were locking in with the kind of ease that comes from years of accumulated mileage. The band was touring steadily, playing theaters and arenas across the country, and the early '80s shows have a tightness and confidence that rewards deep listening. The Aladdin Theater in Las Vegas is a fascinating room in the Dead's story — a mid-sized venue with the kind of intimate, slightly surreal quality you'd expect from a showroom on the Strip. The Dead played Vegas periodically through their career, and there's always something charged about the setting: the desert heat, the transient crowd mixing locals with traveling Deadheads, the sense that anything might happen in a city built around spectacle. A Dead show at a Vegas theater carries its own particular electricity, the band playing to a room that has seen every kind of performance imaginable. The songs we have documented from this show tell a satisfying story about where the night was heading.
Althea, from 1980's Go to Heaven, was by this point a set staple that Garcia and Weir both inhabited with genuine warmth — it's a song that rewards subtle interplay, the verses conversational and the guitar work winding and lyrical. Then the show closes out with the classic one-two punch of Johnny B. Goode and U.S. Blues, a pairing that practically defines the Dead's late-show celebratory mode. Johnny B. Goode in Garcia's hands is always a joy, loose and grinning, and U.S. Blues as a closer is the Dead at their most unabashedly fun — a patriotic joke delivered with total sincerity. If the recording you find from this night has a clean source, listen for how the room responds when that Chuck Berry lick kicks in; Vegas crowds knew how to have a good time, and the energy at the end of a Dead show in that setting tends to be nothing short of infectious.