The Boston Modern Orchestra Project (BMOP), the nation’s premier orchestra dedicated exclusively to commissioning, performing, and recording new orchestral music, ends its 22nd season with A Thousand Mountains, A Million Streams: a one-night only concert of Chinese-influenced orchestral music. BMOP presents four vibrant and inventive musical voices who combine Chinese heritage with Western avant-garde influences. Music by composers Yu-Hui Chang, Huang Ruo, Anthony Paul De Ritis, and Lei Liang fill out this dynamic program.