Leading worship or Putting on a concert?

The thought occurs to me as I listen to the band rehearse for this weekend’s services: Are we leading worship, or just putting on a concert?

We have very talented singers and musicians, but they are struggling with a new arrangment for “Angels We Have Heard on High”. If they are struggling, how will the congregation do without the benefit of music to follow? They will attempt to sing the carol they have been familiar with for years, which of course is not what the band is playing. So, they’ll end up lost, and just stand there listening to a nice concert.

Is that the point?