[and] we didn't actually rebel against it until the third album." Psychedelic rock had been another main influence in the first two Deep Purple albums, but it was rapidly going out of fashion; the musicians ceased their exploration of the genre in this album with songs such as "The Painter" and "Bird Has Flown", dedicating themselves completely to the trendier hard rock genre in the following studio releases. Cover art Tetragrammaton issued the album in a stark gatefold sleeve, wrapped around with a segmented illustration from Hieronymus Bosch's painting The Garden of Earthly Delights. The label ran into difficulty over the use of the Museo del Prado-owned painting, which was incorrectly perceived in the US as being anti-religious, featuring immoral scenes, and was thus rejected or poorly stocked by many record shops. The original painting is in colour, although it appeared on the LP in monochrome due to a printing error for the original layout, and the band opted to keep it that way. Another section of the same Bosch painting (in colour) had been used as an album cover two years earlier, by Pearls Before Swine on their debut One Nation Underground. Release and promotion Tetragrammaton Records had been active only for a year, but was on the brink of bankruptcy in the US. Its initial solid financial foundation had been quickly eroded by expensive promotional campaigns and by failed commercial strategies. Deep Purple were the label's most successful artist, but the band had not been able to produce another hit single like "Hush" and their latest release "Emmaretta", out just in time for their second US tour in April 1969, was also largely unsuccessful and failed to affect the US charts. The label's financial distress caused a delay in the printing of Deep Purple, which was released in the US only on 21 June 1969, after the band had returned home having completed their US tour. In the UK, "Lalena" and "The Painter" were performed live on 24 June 1969 at a BBC Radio session. The album was released in the UK in September 1969 on EMI's sub-label Harvest Records, around the same time as the much-hyped event Concerto for Group and Orchestra held at the Royal Albert Hall in London. At that time Deep Purple's line-up had already changed. The album was distributed in Canada and Japan in October 1969 by Polydor Records. Deep Purple was reissued