‘Blue Christmas’ by Elvis Presley was recorded in 1957 — one band, one room, one take, straight to a mono tape machine. Everything you hear is happening at the same time, in the same space, and that’s part of what makes this record feel so alive. When we isolate the drums, you can actually hear the room in the drum sound. The bass is an upright, and this is about as isolated as we can get it — just enough to hear the body, the attack, and the feel. Listen to how the electric guitar moves effortl