Premise: Ritual Spirit is an EP by British trip hop group Massive Attack, released on 28 January 2016. It features trip hop artist Tricky for the first time since the release of "Protection" in 1994, and also features Scottish hip-hop group Young Fathers, London rapper Roots Manuva and singer Azekel.
Hypothesis: Massive Attack had a hard time getting the artist Tricky to appear on the album.