To get familiar with Twitter's flight framework, I created a small data visualization of Spotify's worldwide track availabilty.
I use the Spotify API to find the availability of the track wordwide.
The results are visualized with d3.js. The countries for which the track is available are highlighted on a globe, created with d3js geo capabilities. To rotate the globe, drag it.
The dataset is a combination of the results returned by the Spotify API, wikipedia country ISO codes list and a json file specifying the country borders.