I was interested to read some studio/production stuff about the making of Led Zeppelin’s Whole Lotta Love. I was surprised to learn that the pre-echo of Plant’s a capella parts (‘Way down inside…’) was not a brilliant idea, but rather an artifact of print-through or cross-talk on the magnetic tape.
I noted that this was another track where Jimmy recorded the drums by placing them in a large reverberant room and miking them with essentially a stereo pair. He also did this to get the great drum sound on The Levee Song. Most engineers and producers close mike the individual drums and toy with the mix to get the sound they want. I think Page’s approach sounds better.
I was also interesting to read how Jimmy Page disfavored releasing singles, and intentionally produced songs that would be hard to cut up into singles.