I actually tag my music if they contain a significant passage of word-for-word scripture, or if I can tell it is directly paraphrased. (An isolated phrase is not enough.) That way if I feel in the need to get some Word into my soul, I just hit this playlist. Most Christian music is edifying, but sometimes there's no replacement for scripture itself, you know?
The artists I have include PoetTree.com, Israel's Hope, Jamie Soles, The Josties, Adonai, Jaci Velasquez, Anderson Cale, High Prairie Mennonite Choir, The Indelible Project, The Outer Court, Stu G, Anthony Skinner, Robbie Seay Band, Whitecross, Third Day. (I probably have more but I didn't tag my collection as consistently early on.) Some do many more songs like this than others, some are scripture throughout while others use it as a refrain, etc. Unfortunately not much on the harder side, though. The Whitecross track is the only one that comes to mind, and that's basically spoken word over a drum rhythm.