Four Fridays in July (10, 17, 24, 31) 2015 Cool Classics Summer Concert Series 7:30pm Back for its 9th season, the popular Cool Classics Summer Concert Series features musicians from the Tulsa and Oklahoma City metropolitan areas. Funded through public donations, the concerts are free to the public on first come first serve basis with receptions sponsored by a local Stillwater non-profit organizations. Additional details announced in June.