But it's the star Philliipa Soo (who won a Tony Award for Hamilton -- and is terrific in this show) along with the cast doing a medley of two songs. So, you get the proper wistful arrangement, and at least a sense of the staging with the cast.
By the way, in a Media Alert, she is scheduled to be a guest tonight on The Late Show with Stephen Colbert, so my guess is that she'll perform a song there, as well. Unless, that is, she says, "Since Bob Elisberg had a video of me tonight on his website, I don't have to sing this evening and you can just go there to watch it." (My guess though is that she'll sing, "Time is Hard for Dreamers," a verse of which she sings here. Most of the video is taken up by the larger-cast number, "Tour de France.")