Led Zeppelin II is the ultimate headphone album! Page is such an underrated producer. There is stuff in there that can only be heard on headphones. The freak-out part of WLL is really cool, but so is the whole album. It's not easy playing air guitar with headphones on, but I can't help it when that HB solo takes off. Amazing, even after hearing it for the millionth time! It is interesting how MD segues into BIOH almost like HB does into LLM. Speaking of LLM, Page may not have liked it, but I love Plant's stuttering at the end. The dirty sounding guitar on LS, the riff on MD, Page really shine