Anontune was a proposal for a "fault-tolerant and open platform for social music" from Anonymous. Its beta implementation allowed users to create playlists of song titles which were playable through Anontune's music engine. Since the music engine worked by searching other networks like YouTube these playlists could then be shared without sharing any actual music. Thus Anontune's music engine was more like a client-side metasearch engine than any previous systems. Anonymous hoped that this would make the platform immune from copyright infringement lawsuits by never directly hosting or linking to copyrighted music or allowing it to be downloaded.