Since 1978’s Music for Airports, Brian Eno has been releasing instrumental records that imagine electronic music as an opium den, leaving rock to his production clients (U2, Coldplay). Small Craft is something different: a rhythmically aggressive Brian Eno album. “Horse” features fearsome electric guitar, and the thrashing end of “2 Forms of Anger” reminds you that Eno helped invent glam, punk and No Wave. Awesome to hear him get rowdy again. Now, is a tour too much to hope for?