A friend recently emailed me and expressed a dilemma he was facing when teaching new songs performed by an artist who varies the way he or she sings the melody. My friend asked: When do we go with the lead sheet, and when do we go with the CD melody? And when do we go with what is simple and consistent and when do we go with what is sung on the CD? I’ve faced the same dilemma. While I’m grateful for many of the new congregational songs that have emerged in recent years, they’re not always sung in a way that makes it easy for a congregation to pick them up. Phrases are elongated in one verse and not the other, melodies are changed, and sometimes …