Paul Woolford's second album under the Special Request alias is a very different beast to its predecessor, 2013's Soul Music. While that was little less than a strobe-fired romp through Woolford's early, rave-era influences, Belief System is an altogether more complex and considered affair. Stretched to 23 tracks over two action-packed discs, the album took three years to produce, contains a number of modular hardware explorations, and features elements of tracks recorded by Woolford as far back as 1993. The sheer breadth and depth of the material is, at times, staggering, as the veteran Leeds producer giddily mixes and matches elements of electro, techno, cinematic soundtracks, hardcore, acid, jungle and experimental electronica. In a word: stunning.