'Find examples of intersections between overlapping sacred and secular traditions: for example, between rhythm-and-blues and gospel, or between various types of rock-and-roll and "Christian rock." What are the similarities in musical style, whether in singing technique, instrumentation, or forms? Are the differences primarily in text/lyrics, or are there other contrasts? If you can compare video examples, how do the performers' self-presentation and interaction with the audience/congregation differ? How might these performances be used in a discussion of what's "appropriate music" for worship?' (p. 252.)