Many Christian radio stations base their music programming on a prototypical listener often labeled "Becky." She is a woman in her 30s to 40s, married with kids. Which explains why Christian radio is primarily adult contemporary, pop, or light rock.
A great summary of a recent survey by Dunham+Company Marketing here.
GMC has a trend report which notes how research impacts who and what is played:
"the research often says listeners don’t want to hear from female artists" notes popular singer Natalie Grant.
