Youtube

Googles Youtube provides a quirky JSON API that makes browsing channels and genres feasible. This beta plugin provides a little overview, and usually retrieves recent video uploads.

VLC can directly play Youtube URLs. For other players the default application setting wraps youtube-dl, which is also used for recording.

Channel options.

Region

With the country dropdown you can predefine which mostPopular listins are returned.

My Channels

You can edit the list of YT channel names to fetch some of your favourite artists/uploaders. To apply this setting, and have new categories show up in the genre pane, use Channel ▸ Update category tree first.

It's not an exact map, but utilizes the search function to find channels.