Our Buzz. Right Now.
What musical key are we in right now? What is our pulse? What is our mood?
Built by Deniz Bilman, PhD. October 2014.
To calculate our musical buzz at the moment, musical analysis data for the hottest tracks right now on Spotify is retrieved from The Echo Nest.
Our Musical Key. The dominant musical key among the tracks we are listening right now. It is determined through calculating the amount of sound mass (energy) present in each musical key.
Our Pulse. The (weighted) mean BPM of the tracks in the dominant musical key.
Our Mood. Determined through calculating the (weighted) center of mass of the (valence, arousal) data set that is associated to the tracks in the dominant musical key. The resulting point is mapped to emotional states which are represented by the color circumplex below, and the corresponding color is served in the background. The underlying framework for this procedure can be found in A circumplex model of affect, by James A. Russell.
Our Musical Key. The dominant musical key among the tracks we are listening right now. It is determined through calculating the amount of sound mass (energy) present in each musical key.
Our Pulse. The (weighted) mean BPM of the tracks in the dominant musical key.
Our Mood. Determined through calculating the (weighted) center of mass of the (valence, arousal) data set that is associated to the tracks in the dominant musical key. The resulting point is mapped to emotional states which are represented by the color circumplex below, and the corresponding color is served in the background. The underlying framework for this procedure can be found in A circumplex model of affect, by James A. Russell.
Right Now.
We are tuned in
We are synced at
The tracks in the dominant musical key feel like
Circumplex of emotions.
Mood of the songs currently being streamed around the world can be found according to this color map. Find out the mood corresponding to the color shown above.
Energy levels of musical keys over time.
Energy levels within the last two hours.

Energy levels of relative keys.











