The Mexican American orquesta is neither a Mexican nor an American music. Relying on both the Mexican orquesta and the American dance band for repertorial and stylistic cues, it forges a synthesis of the two. The ensemble emerges historically as a powerful artistic vehicle for the expression of what Manuel Pena calls the "dialectic of conflict." Grounded in ethnic and class conflict, this dialectic compels the orquesta and its upwardly mobile advocates to waver between acculturation and ethnic resistance. The musical result: a complex mesh of cultural elements--Mexican and American,...