Clockwork Angels is the 20th studio album from rock’s holy triumvirate of Geddy Lee, Alex Lifeson, and Neil Peart, but it also reconfirms Rush’s 35-year-plus dedication to musical and lyrical exploration. The recipe remains the same (as the credits always note, “Music: Lee and Lifeson, Lyrics: Peart”), but the potential for ideas encased in air-guitar perfection keeps flourishing. Clockwork Angels is a conceptual tale about a young man’s dream quest. It involves steampunk, lost cities, pirates, a watchmaker, and more. Musically, Rush doesn't slow down. “Caravan” and “BU2B” exude a heft and dark resonance that recalls Tool. “Headlong Flight,” meanwhile, is another freewheeling Rush track, coasting on a zipline over jagged crevices with Lee as narrator, Lifeson’s careening guitar the guidance system, and Peart’s fluid percussion the accelerator pedal.