According to Bobby Valentine, the Psalms are the blues.  Check out these quotes from his article:

"Life is full of disequilibrium and incoherence."

"Through the Psalms we experience truth that exceeds logic!"

". . . nearly half of the "Book of Praises" is really laments."

"The Psalms are one of the great treasures of the Hebrew Bible."

Read the full article, Psalms: Singing The Blues at the Stoned-Campbell blog.