“Progressive rock” is a term that can encompass a wide variety of sounds. At one point or another in their 35-year history, Porcupine Tree — the brainchild of Steven Wilson — have probably touched upon most of these. Having put out several albums of electronica-infused psychedelic space rock since their formation in 1987, the band reached a peak of critical and commercial success in the 2000s with the metal-influenced experimental songcraft exemplified by In Absentia and Fear of a Blank Planet. By the start of 2011, however, Porcupine Tree appeared to be no more, with Wilson announcing a hiatus to focus on his solo career; he stated as recently as 2018 that getting the band back together “would seem like a terribly backward step”.