and even limited in number (as in Portuguese fado, which only has 64 tunes), nevertheless, Eyerman and Jamison point out that some of the most effective protest songs gain power through their appropriation of tunes that are bearers of strong cultural traditions. They also note that:

There is more to music and movements than can be captured within a functional perspective, such as Denisoff's, which focuses on the use made of music within already-existing movements. Music, and song, we suggest, can maintain a movement even when it no longer has a visible presence in the form of organizations, leaders, and demonstrations, and can be a vital force in preparing the emergence of a new movement. Here the role and place of music needs to be interpreted through a broader framework in which tradition and ritual are understood as processes of identity and identification, as encoded and embodied forms of collective meaning and memory.