AcousticBrainz is an attempt to crowdsource sonic information about all the music in the world. The data, which includes information on each piece of music’s key, mood, genre, tempo, and other factors, currently spans nearly one million pieces of music. The database, a collaboration between the MusicBrainz music metadata database and the Music Technology Group at Barcelona’s Universitat Pompeu Fabra, is available freely online in full. The collaborators hope AcousticBrains will help music technology researchers to create new recommendation systems.
Photo: Flickr User Kmeron