I think there are very few invisible musical instrument players out there who can claim the chops and sheer perseverance of Björn Türoque, the world’s perennial second-place air guitar champion. Whoever this Dan Crane might be, he’s captured the mad, seductive spirit of the arbitrary skill contest perfectly, and rocks it hard into the hot Finnish night. There is no number of umlauts that do this Jekyll and Hyde of air-rocking justice.