Every Noise at Once is an ongoing attempt at an algorithmically-generated, readability-adjusted scatter-plot of the musical genre-space, based on data tracked and analyzed for 6,291 genre-shaped distinctions by Spotify.
OneMusicAPI is a low cost music metadata API. It works by aggregating several popular existing online music databases. This leads to an extensive and accurate range of music data of around 8,000,000 albums and 4,000,000 artists.
An open music encyclopedia that collects music metadata and makes it available to the public. MusicBrainz aims to be the ultimate source of music information by allowing anyone to contribute and releasing the data under open licenses.