Details: I saw it when it was on Broadway in 2016. You can find the playbill at http://www.playbill.com/production/in-transit-circle-in-the-square-theatre-2016-2017
In Transit is a musical that is performed purely A Capella. There is no background music. Everything is performed by voice. While I enjoyed the show, it did remind me just how much I enjoy live instrumental music.
Muse Bank 