Jan 11 through Feb 3, in Portland. This stupendous three-week festival has a staggering line-up of films.
I can definitely recommend Brasilerinho, by Finnish director Mika Kaurismäki, a close-up look into the work of Brazil's choro musicians.
Another worth seeing is You're Gonna Miss Me, about the legendary 13th Floor Elevators leader Roky Erickson. The strange story of Roky's career and family is thought and emotion provoking. Since I don't live in Portland, and you don't either (probably), both are out on DVD.
Also docs on the incredibly influential Les Paul, troubled-and-talented jazz singer Anita O'Day, and the brilliant/tragic British music producer Joe Meek, of Telstar fame.