Premise: Abdessadeq Cheqara (1931 – October 31, 1998) (in Arabic: عبد الصادق شقارة) was a Moroccan singer of traditional Andalusian classical music and Moroccan folk music. Known as the "grand master of al-Ala (Andalusian music)", he was also a violin and oud virtuoso.
Hypothesis: Cheqara is a rock musician