Bossa nova (Portuguese pronunciation: [ˈbɔsɐ ˈnɔvɐ]) is a style of samba developed in the late 1950s and early 1960s in Rio de Janeiro, Brazil. It is mainly characterized by a “different beat” that altered the harmonies with the introduction of unconventional chords and an innovative syncopation of traditional samba from a single rhythmic division. The “bossa nova beat” is characteristic of a samba style and not of an autonomous genre.