Marianne Kim Organ Recital at Boutell Memorial Concert Hall of Northern Illinois University
Update: Here is a Pipe Dreams program which contains most of the Gospel Preludes played by different, very fine organists, and William Bolcom's commentary on them, how he came to write them and many other things. It leads me to think that organ playing is a far more progressive force in music than most people would suspect. Here is the program website with additional links to information and to download the show.
Pipe Dreams is one of the few programs on American radio that I still listen to regularly.