At the Hollywood Bowl on Saturday, the Los Angeles Philharmonic welcomed music director Gustavo Dudamel by putting him to work conducting Beethoven’s 9th. But the high point for a bunch of kids from central L.A. was when Dudamel led the YOLA Expo Center Youth Orchestra in an abbreviated version of “Ode to Joy.” The L.A. Times takes a look at the experience from the perspective of 11-year-old violinist Arlette Romero who takes a 30 minute bus ride to Saturday morning rehearsals. Says Romero of her music experience: “I like how you can express yourself just by playing a few notes. And it’s fun. Lots of fun.”