Question: What large Berber confederation, principally inhabiting the Sahara desert, also has an annual festival showcasing their traditional music?
Sentence (from "Tuareg people"): The Tuareg people ( ; also spelled Twareg or Touareg; endonym "Kel Tamasheq", "Kel Tagelmust") are a large Berber ethnic confederation.
Relevant evidence: Yes