Twenty classical stations, live. The piece comes first and the call sign second, because you are choosing music, not a broadcaster. Shape marks the era, colour marks the origin: red for the United States, blue for Europe.
How this page reaches the stations
Browsers block a page from reading another site's data unless that site permits it, and broadcasters generally don't. A relay fetches the feed on your behalf. Every feed is tried direct first. Relays are public and rate-limit, so switch if many stations fail at once.
Seconds between polls.
Export, edit a stream URL or add a station, then import it back. Changes last for this session. Each station carries a list of endpoints, tried in order.
Loads each endpoint silently and reports which answer. Takes up to a minute.