I would like to recommend my absolute favorite radio station located in Switzerland.
It’s contemporary Jazz and more. 128kBit/s only but ad-free and superb content that seems to never repeat. Please check out.
The streaming URL to add in Volumio is: stream1.impek.com:8100
@Michelangelo: I (and many of my friends) would be very happy to have that on the default collection of Volumio.
I hope you all enjoy.