The list of professional guitarists who had to completely relearn to play their instrument is a short one. Jazz guitarist Pat Martino and former Danzig guitarist John Christ comes to min . You can add to that distinguished shortlist electro space-rock guitarist, Saint Luminus. As his earthling name, William Rustrum, the instrumental guitarist-composer reached dizzying shred heights. Formerly, he fronted the premier Megadeth tribute, Hangar 18, and earned the opportunity to perform the thrash titan’s daunting back catalog with actual Megadeth band members. But after 15-years, the Los Angeles-based artist saw his physical playing ability crumble, and he had to start from scratch on the instrument.

Today, he’s as dexterous as ever, but he uses his technique in service of bringing the meditative sounds of the Universe and progressive rock together in one harmonious sonic experience. His sublimely melodic instrumental compositions have been called “cosmic vacations” due to their otherworldly majesty. Saint Luminus songs glow with dreamy atmospherics, tasteful passages of lyrical shred, and musical motifs that exude a bluesy longing reminiscent of Pink Floyd’s David Gilmour.

His latest track, The Kicker, was released on Oct 7th 2025. The song blends heavy guitar riffs with cinematic, ambient drifts. An energetic yet chilled ride for the cosmic rock enthusiast.