Now, we can take this command sing a new song, one figuratively. “Praise ye the LORD. Sing unto the LORD a new song, [and] his praise in the congregation of saint.” -Psalm 149:1 KJV. We sing a new song even when we sing an old familiar tune when we sing out a new fresh encounter with the Lord, when we experience a new touch of God’s faithfulness in our lives. It is a new song in our hearts, a new expression of thanksgiving, praise and worship unto the Lord. Even an old song becomes a new song when the singing is born out of a new desire to praise the Lord.
Second, we can take it literally. “Sing unto him a new song; play skillfully with a loud noise.” -Psalm 33:3 KJV. This Psalm speaks of making beautiful songs unto the Lord. Singing the same songs over and over may become too monotonous. It would seem like there is no improvement from singers and instrumentalists. It does not necessarily mean that the song would lose its meaning but people might get bored and perceive it as lack or preparation. Therefore, we need to create new repertoire.
With the praise and worship, as far as I know we have the freedom to choose the songs that we want to sing but freedom is not absolute. We need to employ the proper songs.
Principles to Consider:
We sing to the Lord and not to people but we need to lead the people to sing with songs that they can sing because our task is to lead the people to a meaningful worship experience. Consider your congregation.
As much as possible, let us keep the arrangement simple for the congregation. There is beauty in simplicity but simplicity does not mean mediocrity. In this area, excellence might not always be visible or perceivable because it is the work of the Holy Spirit.
Technical improvements will follow. Just offer your best and the Lord will increase the ability.