On Sunday night The Black Angels played at 9:30 Club for the second time in six months. Last time they were in town, they opened for Black Mountain. This time at bat The Black Angels headlined the show, which gave them more time to marinate the audience in their dark psych-rock sound. The club was about two-thirds full, which made for a decent-sized crowd while leaving plenty of empty space for their guitars and vocals to swirl around in. The name of the game was “atmosphere” as The Black Angels enhanced their bad acid trip soundtracks with minimal red and purple lighting casting long shadows, occasionally interrupted by seizure-inducing strobes. The stage back-drop looked simple enough with its a wavy black and white pattern, but eventually continued the theme of acid freak-out as it created a number of optical illusions as different lights and projections bounced off of it. The best way to enjoy the show was to immerse yourself in The Black Angels’ audio-visual soup. Which is exactly what I did.