Polyphonic songs (pulifunie) in Corsica are a cappella, and can be either spiritual or secular. Hymns, motets, and funereal songs (lamentu) are an example of the former, while the nanna (lullaby) and the paghjella are examples of the latter. Traditionally, 4 to 6-voice improvised polyphony was sung only by men, with the exception of the voceru (sung only by women) and cuntrastu (usually 2-voice) and nanne often sung by women. Brotherhoods of polyphonic singers (cunfraternita) remain, some dating back to the 12th century. Corsica's current tradition of improvised vocal polyphony is more recent, dating to 15th century. It is traced to renaissance practice of falsobordone and the Genoese tradition of Trallalero.