« All Events This event has passed. Sinfonia Retreat at Lake Washington High School October 16, 2021 @ 12:30 pm - 3:30 pm|Recurring Event (See all)One event on January 29, 2022 at 12:30 pm « Percussion Ensemble Retreat at Lake WA High School Rehearsal #4 » Add to calendar Google Calendar iCalendar Outlook 365 Outlook Live Details Date: October 16, 2021 Time: 12:30 pm - 3:30 pm Event Category: Sinfonia Related Events 2025-26 Season Auditions June 9 @ 5:00 pm - 9:00 pm 2025-26 Season Auditions June 10 @ 5:00 pm - 9:00 pm 2025-26 Season Auditions June 11 @ 5:00 pm - 9:00 pm