■ Philharmonia Baroque Orchestra:'Four Seasons'
Local violinist Elizabeth Blumenstock and the orchestra perform a program of Baroque concertos featuring Vivaldi's "Four Seasons" tomorrow (Nov. 9) at 8 p.m. at The Center for Performing Arts, 555 Middlefield Road, Atherton. Tickets are $$25-$85. For more information, visit philharmonia.org.
■ 'Playing for Keeps: Life and Learning on a Public School Playground'
Writer and educational leader Deborah Meier discusses why play is important to the lives of children tomorrow (Nov. 9) at 7 p.m. at Kepler's, 1010 El Camino Real, Menlo Park. For more information, visit www.keplers.com.