[3] Shine on Brightly is credited as produced solely by Denny Cordell, but in fact he and Procol Harum had a parting of ways roughly halfway through recording it.

[4] Most of the production work was instead done by Tony Visconti, though lyricist Keith Reid credits the album's engineer, Glyn Johns, with an instrumental role in assembling the track "In Held 'Twas in I".

[citation needed] The album was reissued several times, including a 2009 remaster using the original 2-track stereo masters and featuring bonus B-sides and alternate takes.

While praising all of the songs, he said that "In Held 'Twas in I" in particular "rivaled anything yet heard from such established progressive rock outfits as the Nice or the Moody Blues in length and surpassed them in audacity".

[6] All tracks are written by Gary Brooker and Keith Reid, except as notedSome issues of the album, including the original A&M release, do not list the individual movements for "In Held 'Twas in I".