So, you've finally introduced a new song to your church. You went through the entire process: you determined it was a great congregational worship song. You introduced it to your church even before they showed up to church on Sunday morning (by utilizing social media and gatherings outside of Sunday morning). You felt confident in what you said before you led it for the first time. The song is officially introduced to your church... now what? Is that the end of the process? Well, there's one more step that you don't want to forget: reviewing the effectiveness of the song you've introduced! How do you do that?…