The following description comes from the event organizer.

Join us in North Portland at Haymaker for great food, craft cocktails, and songs from local Portland songwriters. Open mic night hosted by Easyfolk Media gathers every Thursday 7:00-10:00pm. 
Suggested $5 Donation

For musicians: 
There will be 3 sets with 10 minute breaks in between. You're encouraged to sign up online beforehand and indicate during which set you'd like to play. We'll do our best to let you know via email where you fall on the list before the start time. Both an acoustic guitar and electric guitar with amp will be provided for use.
Open Mic Sign Up!
(Sign Up opens the Tuesday before each Open Mic)