As a worship leader, you probably know what it feels like to introduce a new song to your church. No matter how you introduce it - whether you explain the lyrics or start with the chorus - at some point, you're simply going to have to play it for the first time during a worship service. And chances are, your church is not going to be familiar with it. But, what if there were a few things you could do to prepare your congregation for a new song before you ever sing it during a worship gathering?…