Lalo Guerrero will be long remembered as the father of Chicano music. Here his sons Dan and Mark show a documentary about their father and perform the songs which tell the stories of the struggles and triumphs of Mexican American heroes. Support American Theatre: a just and thriving theatre ecology begins with information for all. Please join us in this mission by making a donation to our publisher, Theatre Communications Group. When you support American Theatre magazine and TCG, you support a long legacy of…