Need music data? Get all the data you want and more from the freely available million song dataset, offered by LabROSA at Columbia University and Echo Nest. There’s lots of metadata on song features and your standard stuff like year and artist. There are also several code wrappers and samples to help researchers make use of the data right away.
Million song dataset available for download
10 Best Data Visualization Projects of 2015
These are my picks for the best of 2015. As usual, they could easily appear in a different order on a different day, and there are projects not on the list that were also excellent.
Life expectancy changes
The data goes back to 1960 and up to the most current estimates for 2009. Each line represents a country.