Grace PCA in Douglasville, GA recently posted the link to some lectures given by Dr. Paul Jones on the Music of the Reformation. You can listen to them here. You really should check them out it you get a chance. When I was at Tenth Presbyterian I got to know Paul and, needless to say, was impressed with the excellence with which he carried out his work. You will certainly benefit from these lectures.

I appeal to you, brothers, to watch out for those who cause divisions and create obstacles contrary to the doctrine that you have been taught; avoid them. For such persons do not serve our Lord Christ, but their own appetites, and by smooth talk and flattery they deceive the hearts of the naïve. (Romans 16:17-18)