It's "Santana" meets string orchestra in this very cool arrangement!  This has 3 sections: a recurring call and response riff, a lyrical melody in 4 part harmony, and soli sections jamming on a 2 chord vamp.  All solos are written out but your budding improvisors are free to play out on their own!  This piece also gives the percussion section the chance to cut loose on the cowbell, guiro and congas.  A hit in the making!