From the first mode of mass communication to the cornerstone of Rock'N'Roll music, percussions are usually the first ones to be recorded and the last to be tweaked. The binary will let his place for more complex tempos, the kits will become real monsters before being brought back to reason. Still, research has never really stopped. This drummer isolated at the back of the studio will always have the last word. Kryptonite of engineers, best friend of the rhythm section and the obsession of producers.