The french non-commercial webradio Frequence3 is available over IPv6, both in unicast and multicast.

You can tune in here:

For multicast -> udp://@[ff1e::8888]:8888
For unicast #1 -> http://stream.ipv6.f … 19000/frequence3.m3u
For unicast #2 -> http://stream.ipv6.f … 0/frequence3.ogg.m3u