Before the massive electronic music festival known as Decibel overtakes the city of Seattle this September, the folks organizing the whole shebang are putting on a couple of one-off concerts about town. San Francisco expats and now-resident Baltimoreans Matmos will perform tonight, June 17, at The Triple Door alongside recent musical collaborators So Percussion and opening act Lexie Mountain Boys. Check out info for that show here. A little more than a week later, veteran DJ/producer John Tejada (pictured above) will perform a headlining DJ set at See Sound Lounge on June 26, with Nordic Soul opening. Check out that show's details here.