More than two decades since he blew minds with a suite of brilliant releases on Warp, Vincent Gallo returns to the world of music at long last in Butterfly, his duo with Harper Simon, with the project’s full-length debut, “The Music of Butterfly”. A gesture of gentle, DIY / bedroom left-field pop, falling within the rough territory for which Gallo became renowned during the late '90s and early 2000s, while interweaving fascinating flirtations with minimalism and experimentalism, it’s a truly ca…