Tswana culture is often distinguished for its complex legal system, involving a hierarchy of courts and mediators, and harsh punishments for those found guilty of crimes. Tswana groups are noted for their capacity to absorb foreign peoples, to turn strangers into ‘their’ people, and to do so without compromising the integrity of their own institutions. Song (pina) and dance (pino) are highly developed forms of artistic expression in Tswana culture. Choirs perform and compete with each other on official and ritual occasions. They compose lyrics that offer narratives and critiques of the past and present. The highest number of Southern African wedding songs are composed by the Tswana people.