The Jazz Theologian has an interesting quote from this biography of Desmond Tutu. Here Tutu is seen as a Jazz conductor. He provides openness for the hearers to improvise over what it said. This is interesting in that I have seen the preacher compared to a Jazz musician, but here it is to a Jazz conductor. Here the key is to keep the composition moving forward, but leave space for the Spirit to create in the musical situation.
Preacher as Jazz Conductor