On this day, 4 Jan 1976, progressive rock band Procol Harum played Cardiff’s Capitol Theatre, supported by Viv Stanshall's Vivarium.
Best-known for their recording "A Whiter Shade of Pale" is was the 1967 hit single and one of the few singles to have sold over 10 million copies.
Touring to support Procol's Ninth (their eighth studio album, ninth including Live) that was released in September 1975.
Procol's Ninth was the first release from the band to feature non-original songs: a remake of The Beatles' "Eight Days a Week" and Leiber & Stoller's own "I Keep Forgetting". "Eight Days a Week" was put on the album by the producers, initially against the band's wishes. The album also featured "Pandora's Box", a track that had been composed by Gary Brooker and Keith Reid early in the band's career.
Cash Box said of "Pandora's Box" that "we guarantee you’ll be humming this Procol heavy night and day by the time Halloween rears its head a few weeks from now." As included on Ninth, it differed substantially from the more psychedelic unfinished version of the song that was ultimately released as a bonus track on the 2009 reissue of the band's first album.
Produced by renowned songwriters Jerry Leiber and Mike Stoller, Procol's Ninth featured a slightly different direction with a much more stark sound than previous more elaborate productions. According to an interview with guitarist Mick Grabham, conducted by Roland Clare for the 2009 reissue, Leiber and Stoller focused less on the production sound and more on "the structure of the songs".