One of the most thought-provoking essays I've read in recent days is the essay by Carl Trueman entitled "What Can Miserable Christians Sing?" In it Carl Trueman argues for the intentional inclusion of Psalms singing in our worship. Since most of the popular contemporary songs and choruses are geared toward the high, victorious life, Trueman rightly asks "what songs are there for those Christians who do not live continually in an emotional high?" If we are honest, this is all of us from time to time. God has given us a repertoire of songs that speak to every human emotion we experience. How impoverished we are when we do not avail ourselves to this divine resource. At our church in Atlanta we have begun to incorporate more Psalms in our worship selections. It has been well received as our worship team have put them in our cultural context. The Trinity Psalter has been an excellent resource for this. I commend it to you. Truly Reformed worship, that is Biblical worship, must seriously consider the role the Psalms play in that worship (Eph. 5:19).
You can read the essay and other insightful musings by Carl Trueman in the book "The Wages of Spin."