Around 2006, prolific, hard-drugging singer-songwriter Ryan Adams cleaned up and began spitting out even more music. III/IV is 21 songs from 2007’s Easy Tiger sessions, supplanting that album’s wired folk rock with a blend of punk head rush, New Wave twitch, metal crunch and hippie noodling. “The Crystal Skull” is Morrissey with a girlfriend; “Ultraviolet Light” posits Ian Curtis fronting the Byrds. Does it cohere? Please. Just tighten your scarf and savor the storm.