Way back when, Upgrade & Afterlife was the umpteenth release from the individual and collective forces of David Grubbs (known then for Bastro, The Red Krayola, Codeine, Squirrel Bait) and Jim O"Rourke (known for O"Rourke), whose further history has since numbered at least another umpteen or so essential listens. What is it though, wrapped up in delectable sonic amber here, that defines this Upgrade? To be sure, we hear these young men dashing through the joys of youth-their actual young youth-as well as a version captured in memory and relived with a performative touch. Time remembered as tones, with gravity gained via perceptions. The stuff of memory and sentiment as selective and potentially deceptive in their nature. Who needed "em? As part of its time-traveling function, Upgrade & Afterlife is a return to roots, but not always necessarily Gastr"s. They were more than happy to stand on branches up above other folks in order to see any next thing worth leaping for. In addition to the elder-statesman Conrad, Gastr del Sol drew upon a memorable spectrum of players for the sounds of Upgrade & Afterlife, including Anthony Burr, Steve Braack, Gene Coleman, Mats Gustafsson, Terri Kapsalis, John McEntire, Günter Müller, Jerry Ruthrauff, Ralf Wehowsky and Sue Wolf. When issued, this combination of players, parts and play - packaged in an impressively broad tip-on Stoughton gatefold sleeve emblazoned with Roman Signer"s instantly iconic "Wasserstiefel" image - became the fastest-moving Gastr del Sol record to date. A delightful result, to our way of thinking, of the band"s ability to push at the far boundaries of their music while consolidating upon pleasure points within sounds and songs. Gastr used these polarities to compulsively draw the listener intimately close with sudden injections of g-force and an uncanny interpolation of space.