That type of psychedelic drone music is great–it’s atmospheric, it’s dramatic, it’s transportive, especially if you’re not sober. But in many cases, it also has a tendency toward length and slow movements, and there will always be those with short attention spans who have a hard time focusing on such static music for a length of time. Matt Lawson of the local one-man experimental project Secret Colors recognizes that. That’s why he recently added a visual element to his live performances–screen projections of found footage as well as some personal video recordings flicker on the wall while he plays. “I’ve always felt that the music I make is sort of passive and could be used more as background music for visuals, like a film score,” Lawson told me in a recent e-mail, “or something that doesn’t demand too much attention. So giving people something to look at that isn’t just me noodling on a guitar seemed like a good idea.”That’s not to say that the visuals should skew listeners toward a particular emotion or sentiment–Secret Colors’ music is all about personal interpretation. “The main reason there are no vocals is simply because I’m not a very good singer,” says Lawson. “But besides that, I’ve always felt that adding a voice singing words would make everything too specific, and not as open to interpretation. Giving the songs titles, then, is the closest thing to pinning them down and telling the listener what it’s about, and sometimes I wish I didn’t even have to do that much.”Secret Colors just released a gorgeous full-length titled Lunar, which Lawson ambiguously describes as “sort of scary and moody, or soothing and pretty, or both.” Decide for yourself tonight at the Rendezvous–Secret Colors is playing at a 10 p.m. show that also includes Flexions and M. Women on the bill. Tickets are $7.