A Music station caters to your moods with song lists that plays online.
Musicovery is a music site like a radio station, it plays a music collection depending on your mood. If you are in a good mood or in energetic mood, it chooses the songs from various decades mostly the recent ones and plays the music for you.
Musicovery is a site that lets you choose a mood (anywhere from dark to positive and from calm to energetic), a list of genres, a time period, and you get a playlist that can be listened online (in a low bitrate for free).
The songs are visually connected in a graph as shown in the picture and the song that plays shows in the center, once the song is over the next one plays. It is cool to use. While you browse the site you can choose songs based on the moods and let it play on the background.
Musicovery doesn't have a huge database, but it's a good option if you miss a dark song from the 90s or you just want to hear a relaxing song.
It has all the music genre, like any other radio station. It is free for the users, they also have buttons under the songs to purchase it in Amazon or iTunes. That is how they are paying for the site I think.
You can also choose what decade of songs you would like to listen to, 80s, 90s or backwards 50s, or all. Also, they have songs tailored for UK and French Users.
I wish they would let us select the songs, but this is fine to begin with.