Bonnaroo is postponed. Merlefest and, as of Tuesday, CMA Fest are canceled. The first third of the 2020 music festival season, with all its life and connectivity, has been wiped out by the Covid-19 virus. In this previously unimaginable void, artists have taken to the internet, but mostly as solo actors, gigging for tips. The creators of Shut In & Sing imagined how much festival dynamic they could bring to the crisis.