Share 'Metal By Numbers 4/1 - Mastodon Cracks The Charts'

Metal By Numbers is a weekly column in which we look at the top sellers of the week as well as what’s getting played at Metal radio courtesy of radio trade magazine FMQB, whose metal panel consists of about 80 college and commercial stations that have metal shows, as well as SiriusXM, Music Choice, and more. 63. That's the number of albums that would have put Mastodon in the top ten with Crack t…