Last month it was Gary Houston’s “Visual Crap” exhibition at People’s Art of Portland. This month it’s “The Art of Musical Maintenance” at Goodfoot. What’s in Portland’s water, anyway? Leaving that weighty question aside, from December 3, 2015, through January 27, 2016, Goodfoot will show more than 300 music posters by more than 40 artists, from Brad Klausen to Zoltron. A small selection is shown below, but to see more, visit Expresso Beans. And if you can’t attend the show, visit Goodfoot to check it out—or buy yourself an early Christmas present—from afar.