Critical Equation, the forthcoming album from Dr. Dog, will be released on April 27 via Thirty Tigers. Intertwining an eerie sense of isolation as the steady march of rhythm progresses, “Listening In” carries an unsettling air of mystery. Coupling those haunting vibes with the familiar reinforcement of harmony and jagged instrumental inserts creates a sonic landscape open to discovery. Festival Pier will be playing host to the Philly stalwarts on Saturday, June 23, where they’ll be supported by local wunderkind (Sandy) Alex G.