Since recruiting the Bottle Rockets, a terrific alt-country act out of St. Louis, to be his backing band a couple of years ago, singer-songwriter Marshall Crenshaw has gotten a good second wind. Playing last night at the Beachland Ballroom with three-fourths of the Bottle Rockets in tow, Crenshaw opened his 90-minute set with “Better Back Off,” a tune he described as a “happy song about anxiety” and then quickly disposed of his hits “Someday, Someway,” “Whenever You’re on My Mind,” and “What Do You Dream Of?” He rushed a bit through “Someday, Someway” but seemed to really cherish “Whenever You’re on My Mind” and “What Do You Dream Of?”
