Summary: Dr. Nathan Knutson, the Director of Sacred Music at St. Charles Seminary in Philadelphia, joins us for this episode on the Church's esteem for the pipe organ. We cover the history of the organ in the Roman rite, the basics of its construction, and the theology of its inclusion into a religion which takes the voice as its first instrument. And if you're an organist thinking about how to explain your role to parishioners, we hope you'll find something helpful here, too.