If anyone was likely to find a lost musical treasure in Philadelphia, it was Max Ochester. At 14, he was selling hand-selected records to sample-hungry hip-hop stars including Pete Rock and Q-Tip of A Tribe Called Quest. Now 47, Ochester has devoted his life to digging up rare vinyl and studio tapes, reissuing albums, recording forgotten artists and preserving the illustrious musical history of his home city. In the early summer of 2022, he received a tip from a vinyl collector that a large collection of reel-to-reel studio tapes was for sale in a foreclosed house in the Philadelphia suburbs....