With Straight Outta Compton riding high in theaters for the second weekend in a row, Dr. Dre is on everyone’s mind. This is especially the case, it seems, in a random Arizona bar where a patron plopped down at the piano. Perhaps he could have pumped out a drunken version of “Heart and Soul” or some soothing Chopin but, instead, the man truly delivered. These rap tunes play surprisingly well on the keys, and the dude hammered the songs out with feeling. The bonus is the guy in the red shirt beside the piano jammin’ out.