Samba ( ) is a Brazilian music genre and dance style, with its roots in Africa via the West African slave trade and African religious traditions, particularly of Angola and the Congo, through the samba de roda genre of the northeastern Brazilian state of Bahia, from which it derived. Although there were various forms of samba in Brazil with popular rhythms originated from African drumming and the African structures of polyrhythm of Beat and Off-Beat, Time-Line-Pattern and the elementary pulse, that are performed by different instruments of the bateria of the samba schools of the famous Samba-Enredo, that has its origins in Rio de Janeiro.