I can't see much connection between today's Christian music and that of the 60s and 70s. Certainly, the people in the article proved their was a market for Christian music. But other than that, it's hard to draw comparisons because as a subset of popular music, Christian rock has never inspired itself as much as it has sought inspiration from the secular music that dominates the scene. These old-time bands, not surprisingly, sounded a lot like the top secular bands of their day. Today, it is even more pronounced, as nearly every major Christian artist bears an amazing resemblance to a secular counterpart, stretching beyond just their sound and into everything from hairstyles to fashion.