Grover Biery on The Beach Boys’ Pet Sounds and the Search for Three-Dimensional Mono

Today, we return to one of the most discussed albums in pop history: The Beach Boys’ Pet Sounds.Nearly 60 years after Brian Wilson assembled its world of harmonies, longing, bass lines, sound effects, and impossible emotional detail, Interscope-Capitol’s Definitive Sound Series is preparing a new mono One Step edition sourced from analog tapes connected to the revered 1972 Brother/Reprise pressing. For collectors and audiophile listeners, that pressing has long held a special place because of its clarity, balance, and unusually vivid presentation of the album’s dense production.My guest is reissue producer Tom “Grover” Biery, who helped trace, verify, and bring these tapes back into the conversation with the help of Chris Bellman and the archive teams. We talk about why this source matters, what “three-dimensional mono” means, how a single-channel recording can still feel layered and spacious, and why the 1972 pressing may reveal something important about how Pet Sounds came to be understood after its original 1966 release.We also get into the practical side of making a record like this: tape boxes, archive clues, test pressings, quality control at RTI, the cost of producing a limited One Step edition, and the challenge of honoring a masterpiece without flattening it into mythology.Here is my conversation with Tom “Grover” Biery on Pet Sounds, the 1972 Brother/Reprise source, and the continuing search for the clearest way to hear one of Brian Wilson’s greatest achievements.