Old Man Gloom, the space-metal collective consisting of members from Cave In, Converge, and Isis, plays the Bottle on Sunday, but they’re not the only Boston-area heavy metal supergroup in town this weekend: Mutoid Man, featuring Cave In singer Stephen Brodsky and Converge drummer Ben Koller plays at Reggie’s Rock Club tomorrow night. While Old Man Gloom focuses on punishing, guttural sludge, Mutoid Man operates at the opposite end of the heavy spectrum, playing melodic, technical psych-metal with proggy flourishes. The highlight of the band is without a doubt Koller, whose acrobatic drumming makes it sound like he’s hammering away at his kit with eight arms. Today’s 12 O’Clock Track is “Sweet Ivy,” from the band’s brand-new Bleeder LP, out on Sargent House. Check it out below, and try to catch both bands this weekend.