These contacts led in the following year to the formation first of the Blue Notes and, secondly, of a big band called the Castle Lager Big Band. The Blue Notes at this stage consisted of Mongezi Velelo (and later Sammy Maritz) on bass, Early Mabuza on drums, Dudu Pukwana on alto and Nikele Moyake on tenor. The great young trumpet player Mongezi Feza joined the group soon after. Johnny Dyani replaced Sammy Maritz on bass and Louis Moholo replaced Early Mabuza soon after and the permanent Blue Notes group was complete.