JohnyBroadway, I tried locating that clip for you to see, but wasn't successful.
There are several very high quality promo clips, which I'm sure most of you have seen, of the recent non-equity tour. And unless you're unfamiliar with the Broadway revival cast recording, you will think I'm nuts because the orchestra sounds every bit as good on those clips as it does on the revival recording.
But see, non-equity tours have non-equity tour advertising techniques, and those promo clips feature images of their cast performing and lip-synching to the actual Broadway revival cast recording. So you'll buy your over-priced tickets thinking that's what the show is going to sound like, until you take a seat and that midi machine gets fired up and piped into blue super speaker.
Recreation of original John Cameron orchestration to "On My Own" by yours truly. Click player below to hear.