The search for persistent elements in nature and culture, which comprises language as a constitutive part, is a prerequisite for the definition of any change which is the aim of our common project. When analysing the process of transformation by a number of disciplines we expect to discover significant features of this alteration and the forces dominating it. The current highly complex present linguistic situation in the western and south-western fringe of the Chad Basin will be reconstructed from the historical migrations undertaken by the various linguistic groups from Lake Chad (mainly Chadic languages) to their present settlements. The six authors, the linguists Dr. Dimitr Ibriszimov, Dr. Doris Löhr, Christopher Mtaku, the ethno-musicologist Dr. Raimund Vogels, and the historian Ibrahim Maina Waziri integrated the results of their studies into one paper towards a systemic approach by tracing back the common roots of the languages, the customs and the music of those peoples and give an outline of their tradition concerning their movements. A basic dual model of migration will be put forward
