I really don`t have the answer. I have checked various websites, even ALW`s own, and it is delightfully equivocal :-)
I didn`t know that ALW is a founder-member and supporter of the Open Churches Trust. Good for him, I say !
He even has a mini-blog here, which I have just found to say that the orchestra is recording the Rogers` score. Sounds like it may be fairly traditional.