Barry Diament. Odds are, you’ve never heard of him— or think you haven’t. The truth is, though, that if you have albums or CDs by Bad Company or Hoodoo Gurus or Led Zeppelin or Linda Ronstadt, you could have some of his work in your collection. Diament, you see, has mastered or remastered albums by those and many other musical artists. What is mastering? According to Hoyle (erm, Wikipedia):