On this day in music history: October 10, 1970 - “Atom Heart Mother”, the fifth album by Pink Floyd is released. Produced by Pink Floyd, it is recorded at Abbey Road Studios in London from February - August 1970. The first self produced album by the band (though executive produced by longtime producer Norman Smith), it marks the end of their “psychedelic period” moving toward writing more tightly structured songs. The first side of the album featuring the title track is a nearly twenty four minute long suite (made up of six movements) featuring additional orchestration by the EMI Pops Orchestra and choir vocals by the John Alldis Choir. The albums iconic cover photographs taken by Storm Thorgerson of Hipgnosis is in response to the bands request for “something plain” on the cover. Thorgerson drives out to a cow pasture in Hertfordshire and takes the photos for the front, inner gatefold and back cover. Unlike previous albums, the cover does not contain any text with the band’s name, album title, track listing, or even any pictures of the band. This becomes a main feature of Pink Floyd’s albums throughout the rest of their career. It is also the first Pink Floyd album to be mixed into quadraphonic sound, first being released on 8-Track tape and and as a vinyl LP. Reissued on CD and vinyl various times over the years, the album is remastered and reissued on 180 gram vinyl in 2016. “Atom Heart Mother” hits number one on the UK album chart, peaking at number fifty five on the Billboard Top 200, and is certified Gold in the US by the RIAA.