The way the information is displayed through
The ability to change main visualization based on aspects that user is seeking.
The ability to mouse over aspects on bar graphs and see the associated artist highlight on the main center graph.
Some songs will play an audio preview when scrolling over a specific song data point, and some do not. Ensuring this happens for every single song or having an option to remove data without song previews would be a good feature.
Having a list of songs displayed for the artist including the search bar.
An improvement of the Song Feature Distribution overview graphs to separate similarly to main graph split view.