On the topic of chapman stick, I saw Tony Levin and Markus Reuter play live in Sydney last year. Incredible. Tony's worked with several main stream pop acts of the 80s/90s, but has also done at least something with basically every big prog group of the last 40 or so (including principally King Crimson), and is an amazing bassit and stick player. Don't think he's a Christian of any stripe, but he played on an album by a group called Simon Apple, who are a kind of jazz/prog group, and are also Christians (I believe they did a version of a hymn on their album. Can't remember which one)
Markus is a German touch guitarist who's very into ambient and experimental music, great guy to boot, did some orchestral work based on weird musical intervals that I personally enjoy a lot. Very accomplished players both that can do incredible stuff.
On a slightly related note, I believe Adrian Belew (who I also saw in Sydney, also of KC, and I think toured with Bowie and Zappa at various stages) produced a DC Talk album at some point. Or at least something that involved multiple DC Talk members (definitely Kevin Max and Tobymac, at least. Fun times.
Now, I have no idea anymore how we got here and so off topic, but me likey