The writer Bom Coen traces the roots of trance to Paul van Dyk's 1993 remix of Humate's "Love Stimulation". However, Van Dyk's trance origins can be traced further back to his work with Visions of Shiva, being the first tracks he released In subsequent years, one genre, vocal trance, arose as the combination of progressive elements and pop music, and the development of another subgenre, epic trance, finds some of its origins in classical music, with film music also being influential.