Photos: Messy, glorious Bernstein

Gustavo Dudamel conducts the Los Angeles Philharmonic through a rehearsal of Bernstein’s “Mass” at Walt Disney Concert Hall.

Dancers and Street Chorus members perform with the Los Angeles Children’s Chorus, the Los Angeles Master Chorale, the UCLA Wind Ensemble and the Los Angeles Philharmonic for Bernstein’s “Mass.”

Street Chorus members, dancers, the Los Angeles Master Chorale, the Los Angeles Children’s Chorus and the UCLA Wind Ensemble and the Los Angeles Philharmonic perform Bernstein’s “Mass.”

Ryan McKinny, center, performs as the Celebrant in Bernstein’s “Mass.”

Ryan McKinny as the Celebrant.

Gustavo Dudamel, center, conducts the Los Angeles Philharmonic while the Street Chorus, dancers, the Los Angeles Children’s Chorus, the Los Angeles Master Chorale and the UCLA Wind Ensemble through a rehearsal of Bernstein’s “Mass.”