Disarming those who groused about classical-music elitism, people lined up around the block to get into Benaroya Hall’s first Day of Music back in 1998 (has it really been 10 years?), the most exciting event of its inaugural weekend. This year’s anniversary celebration again offers free performances of all kinds of music all over the grounds—also spilling over to SAM and the Triple Door (see www.seattlesymphony.org for details). Among the highlights: Gerard Schwarz conducting Mahler’s First with a community orchestra, the Seattle Seahawks Blue Thunder Drumline, bagpipes and mariachi, and the Boogilistics. Benaroya Hall, Third Ave. and Union St. Free. 10 a.m.-10 p.m. GAVIN BORCHERT

Sun., Sept. 14, 10 a.m.-10 p.m., 2008