By the spring of 1986, the Grateful Dead were operating as a well-oiled machine with Brent Mydland firmly established as the band's keyboardist — his seventh year in the fold, and one in which his bluesy, muscular Hammond work had become as essential to the Dead's sound as Garcia's liquid guitar lines. This was the mid-eighties arena era, a period when the band had grown into one of the biggest touring acts in the country, drawing massive crowds even as the underground tape-trading network kept the community intimate and obsessive. The Grateful Dead of 1986 were a band capable of genuine transcendence on any given night, even if the consistency that defined 1977 or 1972 had given way to something a bit more feast-or-famine. Still, when the stars aligned, the interplay between Garcia, Weir, Lesh, and Mydland could be stunning. Irvine Meadows Amphitheatre, nestled in the rolling hills of Orange County south of Los Angeles, was a beloved Southern California staple for Dead shows throughout the eighties and nineties. The open-air setting suited the band well — the kind of place where the evening air off the hills would settle in around you as the second set opened up, and the crowd, thick with longtime Southern California Deadheads, was always ready to travel. It was a comfortable room for the band, and they often seemed to relax into it.
The fragments we have from this particular night center on "Supplication" — specifically a "Supplication Jam" sequence that hints at something special unfolding in the improvisational space. "Supplication" was one of those transitional vehicles the Dead used to bridge musical ideas, a funky, churning figure most often heard wedged inside "The Other One" or floating between segments of a larger jam. When it gets its own extended moment, it tends to reflect a band that's genuinely locked in and listening to each other. Brent's keyboards give this kind of groove real bite, and Garcia's phrasing over that kind of dark, rolling rhythm tends to get searching and deliberate in the best possible way. The recording quality available from this show is worth investigating on its own terms — even a good audience tape from Irvine Meadows captures the outdoor bloom of the sound in a way that rewards headphone listening. If the "Supplication Jam" on offer here represents even a fraction of the full performance from this night, it's a window into the Dead doing what they did better than anyone. Fire it up and let yourself fall in.