It’s billed as the future of opera, live performance, technology and art, at least according to German audio company Sennheiser. But to judge from “Invisible Cities,” the new opera for wireless ...

If you travel through Union Station this weekend, you might walk right into the middle of an opera performance and not even realize it. You might even brush it off, thinking you've run into some ...

Invisible Cities isn’t your parents’ opera. There’s no orchestra pit. There’s no stage. There’s no front row. Instead, the production, which is based on an Italo Calvino novel about an imagined ...