During 1965-1975 in New York, musicians of Cuban and Puerto Rican origin combined to produce this Cuban-style music. The music got the label of 'salsa'. No-one really knows how this happened, but everyone recognised how good it was to have a label for it. Over time, salsa bands worked in other influences. For example, in the late 60s Willie Colon developed numbers that made use of Brazilian rhythms. N.Y. radio programmes offered 'salsarengue' as a further combination.