The Mad River Brewery welcomes back "one-man-psychedelic-acoustiloop" musician Holus Bolus tonight at 6 p.m. Think of him as a one-man band, playing a multitude of instruments and layering them one at a time through a looping machine. He may record the drums first and then a bass line and then some chords and then sing and solo over what has already been recorded. It's far easier than touring with a full band and cheaper too. It's also a bit more interesting to figure out. His music has rock grooves with some reggae and funk touches here and there. It's a free show, so welcome him back to Humboldt. High priests of high-altitude-mesa-peyote rock Opposum Sun Trail make an appearance at the Logger Bar in Blue Lake tonight. And, if the rumors are true, you won't have to worry about anybody trying to shut the party down à la Footloose. Joining the 'possum tonight are fellow locals and country rockers Mojave Green. The show starts around 9 p.m. and is free. At the same time, and just a few blocks away, you'll find some "beach/reggae" rock in the Wave Lounge in the Blue Lake Casino from Safety Orange. They'll be playing until about 1 a.m. and also for free. Top of the hill in McKinleyville, you'll be able to hear the Jim Lahman Band playing at Six Rivers Brewery at 9 p.m. as well and also for free.