Increased airtime, along with growing listenership, which included the increasing black labour force as well at the educated elite in urban areas which had access to radio transmission, allowed for greater experimentation with the material being broadcast. The catalogue of isiZulu literature increased as well as the variety of music genres on rotation, which then started to include American Jazz, township jive, traditional music and even gospel music. This expansion of materials allowed radio to cater for the tastes of both the city elite as well as the lesser polished, former 'farm boy' workforce.