Twenty-one years after they teamed up with the San Francisco Symphony for their 1999 live album and video S&M, Metallica and their local orchestra have collaborated again for S&M2 (CD, digital, vinyl, Blu-ray audio, Blu-ray, DVD). And like the original, this second collection of orchestrally-augmented Metallica has many moments of might and magic…and a couple that are misfires or just mushy.