« 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 » + Google Calendar+ Add to iCalendar Details Date: October 16, 2021 Time: 12:30 pm - 3:30 pm Event Category: Sinfonia Related Events Spring Rehearsal #2 April 1 Spring Rehearsal #3 April 15 Spring Mini Retreat (Premiere, Sinfonia, Flute Choir, Flute Orchestra, Percussion, Philharmonia & Youth) April 20