2020 collection. We're now in the double digits of brilliant long-lost, rare, and unreleased hard rock, heavy psych, and proto-metal tracks from the 60s-70s and clearly this has become a bonafide archaeological movement as each new edition leads us to more exciting new discoveries. Like we've done throughout this series, all of these tracks were painstakingly licensed legitimately and the artists were paid. Make yourself comfortable and prepare for yet another deep, deep dive into the treasure trove of dank, subterranean, wild-eyed and hairy rock 'n' roll.