Choro is a very popular music instrumental style. Its origins are in 19th-century Rio de Janeiro. In spite of the name, the style often has a fast and happy rhythm, characterized by virtuosity, improvisation, subtle modulations and full of syncopation and counterpoint. Bossa nova is also a well-known style of Brazilian music developed and popularized in the 1950s and 1960s. The phrase "bossa nova" means literally "new trend". A lyrical fusion of samba and jazz, bossa nova acquired a large following starting in the 1960s.