Committed to championing rising and established composers who write for treble choir, the acclaimed Los Angeles Children’s Chorus presents a world premiere by Los Angeles-based composer Dale Trumbore, commissioned by the chorus, at its Spring Concert on May 7 and 14. Trumbore, praised by The New York Times for creating “soaring melodies and beguiling harmonies deployed with finesse,” is among a new generation of composers helping to expand and reinvigorate the choral repertoire. The program also features works by Bartók and Kodály as well as a vibrant mix of music both contemporary and traditional.