The latest freebie from the Kracfive gang is “Blind Alley Cat,” credited to Kettel. It weaves a slowly developing snake-charm melody over the sort of meticulously percussive momentum that makes Volkswagen TV-commercial directors salivate, until, after nearly three minutes, it stutters to a sudden close, like someone forgot to check the gas gauge. Grab “Blind Alley Cat” from the MP3 Rotor section at kracfive.com. It’s up for the month of May, after which another Kracfive song will take its place. More info on Kettel, born Reimer Eising, at kracfive.com/kettel.