“I know it’s electronic music,” Brian Lindgren says, “but sometimes I feel like an old-timey traveling musician with an M-Audio Trigger Finger instead of a guitar.” As Mux Mool, Lindgren has been criss-crossing the country by himself for years, collecting records, loops, and samples, and rocking parties in towns both large and boondock-small. Lindgren is a self-confessed nerd to the bone, an incurable doodler, a Star Trek: The Next Generation fan; he lives on energy drinks and barely sleeps