When the DJ calls out to concertgoers at a recent event near Tokyo, the response is more visible than audible — along with some honking of car horns, a flicking of blinkers and hazard lights and flashing of penlights from behind car windows.

Welcome to the world of the "drive-in" concert, one of the ways that entertainment involving large crowds is adapting to the coronavirus pandemic.

The Drive In Fes event late last month on the outskirts of the town of Nagara in Chiba Prefecture was organized by a party creator with a track record of pioneering avant-garde gatherings and was one of the biggest drive-in concerts yet held in Japan.