The tango is a style of music and form of dance. Both originated in the brothels of Buenos Aires around 1900 and were greatly influenced by European and African immigrants. The tango dance is a duo. The basic dance steps include walking, turning and stopping. The tango dance has many styles. Some tango dancers hold their partner close; others dance in an open frame. Some dance with an upright posture; others dance in a less rigid stance. The first tango bands included a flute, violin and guitar. The tango sextet, the standard today, is made up of a piano, double bass, two violins and two bandoneones, an accordion-like instrument. Tango Nuevo, the modern musical form, includes a saxophone and electric guitar. Tango music was the first to come on the scene but it was the tango dance that caught the world's attention.