One of the readings is from the Psalms and you notice there is more than one psalm to be read. Most of the daily readings cover several psalm chapters as they rotate over a 6-7 week period. Anyway, I found a most lovely arrangment of Psalm 133 and thought I would share this with you. It "speaks" sings for itself. I think you will enjoy it.
From the outstanding three-albums-in-one-CD, "The Psalms of David", performed by the Choir of King's College, Cambridge, Psalm 133: Behold how good and joyful a thing it is!