[1] After singer Robert Plant added lyrics, it was temporarily known as "The Campaign" before becoming "The Song Remains the Same".
[2] Bootlegs from this tour reveal that the song was still without a settled title, with Plant introducing it as "Zep" from the stage at Tokyo.
"The Song Remains the Same" was featured on Led Zeppelin's 1976 concert film (and accompanying soundtrack), as part of Plant's fantasy sequence.
In a contemporary review of Houses of the Holy, Gordon Fletcher of Rolling Stone gave "The Song Remains the Same" a mixed review, writing that the track is "the only other tune [on the album, except for "The Ocean"] approaching the Zep's past triumphs" and "works solely as a vehicle for Page's guitar antics".
[4] In a retrospective review of Houses of the Holy (Deluxe Edition), Kristofer Lenz of Consequence of Sound gave "The Song Remains the Same" a more positive review, praising every band member and writing that "as the band moves through the many changes of “The Song Remains the Same”, they are tight yet nimble, proficient yet unpretentious.