James DeMars (1952 - ) has written  works that frequently explore intercultural collaborations:

GUADALUPE: a bi-lingual opera in two acts (110’); winner of two 2015 Arizona Theater Awards for libretto and music.
    "As the last notes faded I sat awestruck... this opera was a milestone in the history of contemporary music." Latino Perspectives


AN AMERICAN REQUIEM (75') for chorus, soloists & orchestra
     "At the close of last night's premiere performance there could have been little doubt that James DeMars had met the standards of the death masses of Brahms and Britten;  grand and spacious, stately, ethereal, glorious, inspired and quintessentially American, (it) speaks of untarnished dreams and naive yearnings; an intensely hopeful conjuration of all that is best about the nation's peoples."  -  Washington Post

TITO’S SAY, for chorus, soloists & orchestra: for soloists, poetry by Alberto Rios (25’)
     "Four poems of skewed love set to pleasant and chatty music."  - New York Times

NATIVE DRUMMING, two movements for the Black Lodge Pow-wow Singers & Orchestra (20’)
     "...searingly honest, by turns mesmerizing, haunting, hair-raising and astonishing... just plain gorgeous in its sonics, with strings racing over the singer-drummers like a veil of night over the desert, and brass harmonies moving like sunlight across a mesa." - Arizona Republic

TWO WORLD CONCERTO for Native American flutist, R. Carlos Nakai (28’); winner of two Native American Music Awards.
     "...on epic scale, sweepingly dramatic & rhythmically concise."  Los Angeles Times  
    "...compelling... an ode to the unspoiled beauty of Minnesota lakes, forests and wildlife."  Chicago Tribune
SABAR CONCERTO for African Drums & Orchestra for Mark Sunkett (22’)
    "DeMars brings the orchestra into direct union with ritual music and dance from Senegal in a sonic travelogue, that was stunningly entertaining as well as culturally engaging."  - Arizona Republic