The bonus material, available on the Deluxe Editions, however, gives us fodder for real discussion. Unlike the third album, which had Keys to the Highway/Trouble in Mind, there is nothing new in the bonus material, nor is there any live material like we saw on the first album. Both IV and Houses of the Holy's bonus discs are presented as the complete album, with alternate versions, alternate mixes and instrumental versions of the songs.
In February 1971, Jimmy Page and engineer Andy Johns travelled to Los Angeles, master tapes for the fourth album handcuffed to Page (note: kidding), to master the album that would become what many consider Led Zeppelin's most astonishing moment. He took the tapes to Sunset Sound Studios, where the state of the art studio was booked for mastering of the tapes. Job done, he returned to London and settled into Island Studios with his bandmates to play the new album: the sound was a disappointing mess. No one seems sure what happened, but it appears the equipment at Island couldn't handle the more sophisticated mastering done at Sunset Sound, and Page returned to the Island Studio to re-master the songs yet again. Of the eight songs on the final album, seven of them were from the London mixes. Only When The Levee Breaks survived from the California mixes.
Of the bonus material on Led Zeppelin IV,
Rock and Roll and Stairway to Heaven on the other hand, have barely noticeable differences. The guitar is a little down in the mix here, the voice up there. Yes, the recorders are definitely louder, but not so much that most people would notice if they didn't know. On the other hand, Black Dog (Basic Track with Guitar Overdubs) is an alternate take, and while the differences are subtle, at least until the ah-ha's when a Plant adds a harmony vocal. It doesn't work actually, sounds too much like that guy beside you at the concert singing along with the band, but you can hear them trying something. Besides, Plant's ad-lib on the outro is outstanding.
Instrumental mixes of Going to California and Battle of Evermore are interesting, but the repetitive nature of those songs means it's not something you would listen to more than a few times. While not something you might throw on in the car on your way home from work, throwing the LP on the turntable with a good whiskey
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The Rain Song (mix minus piano) baffles me slightly, but only because I can’t detect the difference between the original and this one. The Crunge (rough mix - keys up), Dancing Days (Rough Mix with Vocal) and The Ocean (Working Mix) are the same. Detecting what may be different (no count in on The Ocean for example) could be a game unto itself. So while there’s nothing exciting in the remaining bonus tracks (and no D’Yer Mak’er at all), added in with the three instrumentals you get an idea of what this album could have been like. And in fact, Jimmy Page’s original idea was to start it off with The Song Remains the Same as an instrumental (in fact, it was originally called Overture) that connected to The Rain Song.
What you get from the Houses Of The Holy