Random Patterns reveals new songs and there’s cowbell involved. Known for its parts and progressions and long jams, the band explores (or records) itself in a new way here on “Cans All Day.” The wall of noise is clearer, more like a window. That’s just a warm-up for “Raw Luck,” a really cool Random Patterns experience. It’s full of nice smooth contrasts. Something pretty in the melody comes at you quickly and strangely, like it’s leaking. …Scales.