Next year will be the 30th anniversary of Back To The Future—arguably the greatest movie ever made about a kid trying to convince his parents to have sex—and while Robert Zemeckis and Bob Gale will be celebrating the occasion by turning their movie into a musical, some fans in Switzerland are going to turn it into an orchestral performance. This comes from Variety, which reports that an orchestra in Switzerland is going to stage a handful of special screenings of the movie in May that will have Alan Silvestri’s original score edited out and replaced by a live performance of the music. Silvestri himself will also apparently be contributing 15 minutes of newly written Back To The Future music “exclusively for these special presentations.”