This is great and it comes just as several Dutch AVRO stations discontinue streaming, so I am actively looking for replacements. AVRO streams were 256kbit, and no talking ever - perfect!

You can find a decent list of streaming classical stations here, but many have occasional announcements and some do news breaks with extended talking. http://www.listenlive.eu/classical.html

For the simplest and lightest-weight streaming on Linux try Radio Tray (https://bitbucket.org/carlmig/radio-tray) which might be in your repos already.