I have a suggestion to make about the presence of live recordings on Last.FM. There are many of those on last.fm, and they also pop up randomly when you listen to a radio.
However, some of them are of poor quality or acoustic versions. I'm often disappointed it didn't pick the "original" version.
What if live recordings were tagged "live", the radio could have the option to filter out live recordings.
Or bind the live recordings to the original track, so you can choose to listen to the original instead ?
Live recordings on Last.FM