Steel bath as feel-good therapy: do you need the new Metallica album?

With time-honored names of hard metal rock like Metallica, one usually associates dense crowds in the concert hall, sweat, dirt from the festival mud and ringing in the ears, but also a willingness to experiment. With their album “72 Seasons”, released on Friday, the four aging Californians are once again taking untrodden paths: they introduced their loyal audience of young and old to the eleven new…