Vinyl LP pressing. November 2017 is the 50th Anniversary of The Moody Blues' Days of Future Passed, one of the first albums to fuse rock music with an orchestra, DOFP is now regarded as one of the albums that gave birth to progressive rock. Recording sessions for the album took place at Decca Studios in West Hampstead, London between 9 May and 3 November 1967. The band worked with record producer Tony Clarke, recording engineer Derek Varnals and conductor Peter Knight. The group has claimed that after two years performing as a struggling white R&B band, the Moody Blues were asked in September 1967 to record an adaptation of Antonín Dvořák's Symphony No. 9 for Decca's newly formed Deram Records division in order to demonstrate their latest recording techniques, which were named "Deramic Sound". Instead, the band (initially without the label's knowledge) decided to focus on an album based on an original stage show that they'd been working on.