Does this music remind you of Queen? That’s not by accident. But “Major Powers and the Lo-Fi Symphony” isn’t a tribute band; they’re the inventors of what they call Adventure Rock. It may surprise you that all of this sound comes from a trio, and the trio is from Crockett, California. You can see for yourself how three people can make this much music when they play at San Francisco’s Café du Nord on Sunday May 5, with two other bands. Music starts at 7pm.