Here’s a total fucking mood before we all swandive into a long holiday weekend of nothingness: A magnetic new single from House of Harm. It’s called “In Threes,” it follows March’s propulsive “Feel My Heart Beat,” and it’s a lush modern rock number from the Boston trio with an undertow of a bassline and ‘gazing synths that reach oceanic depths. It arrives today (July 1) like any incendiary track should on the eve of a major holiday: No press release with details, no forced band quote outlining what it’s all about, and no spoon-fed friendly-follow-up press drive to drum up copy/paste blog support. House of Harm dropped the track and dipped. We’ll catch them on the flip.