The Titles of the Psalms: Original?

I've gone back and forth while contemplating and studying the titles of the psalms (i.e. Ps. 18's For the choir director [NLT]).  Were these titles written by the original author of the psalm?   Are they original or later additions?  Are they canonical and inspired?  By way of summary, here are what a few psalm scholars say.… Continue reading The Titles of the Psalms: Original?