Topping a bill that included Arthur Lee’s Love and the Allman Brothers Band, the Dead played with superlative consistency across this entire engagement: two concerts each on the 11th, 13th and 14th (with a club date squeezed in on the 12th). Guitar nirvana arrived early, when Duane Allman and Fleetwood Mac‘s Peter Green joined the band on the 11th for “Dark Star.” Owsley drew tracks from the 13th and 14th for his 1973 anthology,  Bear’s Choice , and additional material from those nights was released as  Dick’s Picks Volume Four . But the three-set late show on the 13th, which didn’t start until after 1 a.m., is a popular contender for the holiest of holies – the greatest of them all. “Dire Wolf,” in the first electric set, has the deft balance of earth and electricity the Dead were negotiating in the studio for  Workingman’s Dead . A winding passage through another “Dark Star,” then “The Other One” and a rousing “Turn on Your Love Light” finally ended near daybreak – a fitting hour for a band always driving through space, to sunshine.