Rainbow in the Clouds is based on an old traditional spiritual, possibly an African-American song from the 19th century, entitled God Put a Rainbow in the Clouds.  Composer Carol Brittin Chambers was inspired by poetic Maya Angelou to create of setting of this beautiful song. It is lush and beautiful throughout and will highlight the musicianship of your students.  This would serve as a welcome change of pace piece on your program for concert or contest.