define "formidable"

The joys of press opening include two very important things:
1. a swanky party.
2. reviews.

So, here's the BIG review:
"an unquestionably spectacular production from start to finish, complete with a formidable 14-piece orchestra." NY Times

I don't want to go all AP English on you, but humor me. Let's define "formidable."
1. causing fear, apprehension, or dread
2. of discouraging or awesome strength, size, difficulty, etc.; intimidating
3. arousing feelings of awe or admiration because of grandeur, strength, etc.
4. of great strength; forceful; powerful
I truly hope the Times is not intending either of the first two when they employ this word. Let's assume they're going with numbers 3 or 4. Though I don't know, musicians are the first people I think of causing fear, apprehension, or dread...just saying.

Thing to listen for when YOU see the show: (i've been behind on these, so here are two to make up)
1. On My Own. All of it. Especially the final verse into the climax of the song. If you're really good, listen for the unison string line on the verse "I love him, but when the night is over." When we split from unison into our own parts, its my favorite moment of the show.
2. Listen for the roto tom licks in At the End of the Day. The number sounds like a rock song, amazing.