What term is used for the classic 1970s salsa style from New York?

The term for the classic 1970s salsa style from New York is salsa dura.

Salsa dura, also called salsa brava or salsa gorda, is a hard-driving style that emphasizes the instrumental power of the ensemble. Piano, bass, horns and percussion often take a prominent role, giving the music a forceful, dance-oriented sound.

The style developed in New York City during the 1970s, when large groups such as the Fania All-Stars adapted salsa toward the open-ended descarga tradition. The period brought together Cuban musical foundations with the experiences of Puerto Rican, Dominican and other Latino communities in New York. In 1971, the Fania All-Stars’ concert at Yankee Stadium became a landmark of the era.

Salsa dura is often contrasted with salsa romántica, the smoother, more pop-oriented style that became especially prominent from the late 1980s. Timba and salsa casino are related but distinct terms: timba developed in Cuba, while salsa casino generally refers to a Cuban dance style and its associated music.