Citizens, the end of summer is approaching and this is your last chance for live music in the great outdoors of Cal Anderson Park. If you've been to a previous Sounds Outside production, you know to expect the unexpected, like last month's naked bike parade. The final installment of Sounds Outside stars Seattle's out-jazz favorites: saxophonist Skerik (in his loose-grooving quartet McTuff) and keyboardist Wayne Horvitz (with his skronkadelic Trio KVH). (Cal Anderson Park, 1635 11th Ave, www.soundsoutside.com. 2—8 pm, free, all ages.)