Andrew Keeling's musical guide to Larks' Tongues In Aspic has been revised and updated to tie in with the 50th anniversary of the album's release in 1973. Since its original publication in 2010, much has happened in the court of King Crimson. This newly updated 2023 edition comes with a new Foreword, an interview with Richard Palmer-James, and an Appendix overviewing the musical parameters of King Crimson MK III in concert.