Which city was not one of the Songhay Empire's major ones?

One city that was not one of the major centers of the Songhay Empire is Timbuktu. While Timbuktu is often associated with the Malian Empire and its rich history as a center of trade and learning, the Songhay Empire's major cities included Gao, the empire's capital, and Jenne. The Songhay Empire thrived in the 15th and 16th centuries, significantly expanding its influence over West Africa.