Great site with music. For those who don't want to/can't pay spotify, it is a great alternative:)
It's a site where people put their playlist. At first it supposed to be a playlist made of 8 tracks, but now you can find some that last for hours.
You can find music by genre, tag or simply by writing one's group name (in that case you'll probably find some other groups that are similar to the first one).
Here is one that I like a lot
Perfect for a calm evening