In 1971, pianist, composer and bandleader Eddie Palmieri put out a formative album called Harlem River Drive. Written in the heat of racial turbulence, its lyrics addressed the inequality Puerto Ricans faced in New York City. The album served as a form of protest, as well as commentary on social-justice issues for the people of El Barrio, East Harlem.
Though the Latin funk classic didn't take off in the early '70s, it later became an underground classic. Its enduring songs remain relevant today.