Music Matters -- Minstrels for Hire?

An article on secular musicians who supplement their income playing church gigs set us to thinking about music in the church, and we invited musician (church and secular) @JennMGreenberg and OPC pastor @ChristopherDrew to talk about psalms, hymns, spiritual songs, and dollars.  Here's the story that prompted our discussion: http://www.dallasobserver.com/music/6-dfw-musicians-tell-us-whats-it-like-to-gig-at-church-10477625 This tweet has the Keller quotes: https://twitter.com/presbycast/status/978340219895267328