Artist Explorer - Spotify API Code Example - Discover similar artists and create a playlist

Brilliant, as a DJ can think of a million ways to curate playlists via these visuals.

This tool is an example of what can be done with Spotify's API, but I had been using it for a while as a fully-functioning tool in itself. Recently added was the ability to make a random playlist of top tracks of all the artists that are visible in the relationship tree. Oh, and hover over an artist to hear a sample of their music.