It's a horse - vocally, it's quite demanding - but it's not out of their league.

It's kind of cosmic in its intensity. It's one of a kind.

There's an enormous range of emotion. The soloists have to have the whole bill of goods, from floated pianissimos to massive, full-voice, everybody-join-in, kitchen-sink variety.

When we speak of the Day of Judgment, they're going to get blown out of their seats.