4 ms·I don't understand - what does/did it do?by djs070 10y agoI don't understand - what does/did it do?dingo_bat 10y agoYou can upload a song, and it will jump through the song backwards and forwards such that the song will seamlessly continue forever.j_s 10y ago(Can't upload a new song anymore as of October, but you can search for previously uploaded songs.)