[2] AllMusic reviewer Bill Janovitz describes Williamson's harp playing as "subdued" and his vocal delivery as "smooth": "The swinging music chugs like a train, a feeling it is supposed to evoke for the lyrics I done bought my ticket, I got my load Conductor done hollered, 'All, aboard' Take my seat and ride way back And watch this train move down the track ...

[3] The intro and outro were deliberate homages to the Sonny Boy Williamson song, whereas the rest of the track was an original composition by Jimmy Page and Robert Plant.

[9] In 1973, a portion of the song was used to link performances of "Celebration Day" and "Black Dog" and it was played at the reunion of surviving Led Zeppelin members staged at Jason Bonham's wedding reception in May 1990.

[1] The group maintained that they copied parts of the song as an intentional tribute to Williamson, but resolved the matter with an undisclosed cash settlement.

[1] For the 2003 live album How the West Was Won, the song was credited to Dixon alone, with the note "Medley contains 'Bring It On Back' (Jimmy Page/Robert Plant/John Paul Jones/John Bonham)".