Music groups ebb and flow. Life gets in the way, arguments erupt, but most commonly, musicians just want to try something different. It’s the cycle of a band: get together with one group, add new members, discover different influences, brand yourselves as a new entity, maintain additional side projects, let some die, etc., etc. It’s certainly the path David LeDuc followed, whose activities are all over the map. There was bright rock band Pictures of Then, the darker, more commercially successful Enemy Planes. That last group is still going strong, fresh off Summerfest and a mini tour of Minnesota, but LeDuc is keeping things fresh with a handful of pet projects. There’s folk duo The Less Complex, tribute act The Rolling Stoners, ska rockers Edward the Confessor, cover band The MTVs, and finally, his solo career, debuting tonight at Cause. His solo sound varies from RHCP-esque pop rock to gently layered harmonies almost reminiscent of the Postal Service—but far less precocious. Opening are The Brains & Brawn, Back Pocket Hymnal, and Schoenburg. 21+. 9 p.m. Free. —EK

Cause Spirits & Soundbar, 3001 Lyndale Ave. S., Mpls., 612-822-6000,