A-Trak always puts a unique, er, spin on things. The electronic music tastemaker, DJ hero and all-around cultural force kicks the summer off with the new single “Parallel Lines,” taking the feel-good vibes of last year’s “We All Fall Down” (over 10M streams) to even catchier new heights. With festival favorites Phantogram providing soaring vocals, A-Trak mixes guitar riffs with his signature, turntable-inspired production and peerless ear for beats. The end result is a lush, genre-defying jam ready to burrow into your brain for the next several months. Throw an umbrella in your drink and vibe on out…