Chat about Nehemiah topics that are off thread here
Meditating on God's word is taught and encouraged in Scripture for very good reason. And when you add music to it, "singing Scripture" or scriptural information, it is a powerful tool, indeed--it impresses itself on one's mind more powerfully.
Adding to this kind of singing, physical movements (if not distracting), makes the lyrics even more memorable.
For instance, The Wise Man Built His House Upon the Rock...
The children (and adults) who slap their hands together on the word flat, can never forget the result of building one's house on the sand. "...and the house on the sand fell flat.