I am cross-posting this with the "Jazz and Beyond" Meetup Group. They had a wonderful description of the event that I am merely copy-and-pasting for brevity.
We will join up with them on the spacious bowl lawn of beautiful Cathedral Park.
Here's the details:
Sunday at the festival becomes eclectic with domestic and international highlights including a West Coast introduction to the impressionistic compositions of Eri Yamamoto Trio of New York City, and the United States debut of the energetic Ventura Trio, from Sao Paulo. The progressive Brazilian Trio will launch their West Coast tour at CPJazz 2013. Also playing is Portland's own Blue Cranes, the New West Guitar Group and the Jessie Marquez Band.
Bring a blanket or lawn chair and water. There will be vendors selling food and drinks. It's a good idea to patronize these stands, since it supports the festival. There is no admission charge. Drop by for all or part of the afternoon/ early evening.
More info at: