Methods, apparatuses, and computer programs are presented for updating song playlists based on received rating inputs from user devices. One method includes receiving information associated with songs in an initial playlist from a host device by a server. The server generates a rating interface for the initial playlist, which is associated with an image code. The image code for the rating interface is sent to the host device so that the user devices can access the rating interface via the image code. After one or more user devices provides rating inputs to the songs in the initial playlist, the received one or more rating inputs are analyzed to produce an adjusted playlist. The method further includes transmitting the adjusted playlist to the host device to be executed.