Methods and systems for personalizing user experience based on nostalgia metrics

A server system of a media-providing service, comprising:

• one or more processors;
• and
• memory storing one or more programs for execution by the one or more processors, the one or more programs including instructions for:
• by the server system, accessing a listening history of a user of the media-providing service, the user being in a demographic group;
• for each track of a plurality of tracks in the listening history of the user:
• determining a year associated with the track, and
• calculating a first metric based at least in part on an affinity of members of a demographic group, as compared to members of other demographic groups, of music from the year associated with the track;
• selecting, by the server system, content for the user, based on the first metric;
• and
• by the server system, providing the selected content to a client device associated with the user.

A non-transitory computer-readable storage medium, storing one or more programs for execution by one or more processors of a server system of a media-providing service, the one or more programs including instructions for:

• by the server system, accessing a listening history of a user of the media-providing service, the user being in a demographic group;
• for each track of a plurality of tracks in the listening history of the user:
• determining a year associated with the track, and
• calculating a first metric based at least in part on an affinity of members of a demographic group, as compared to members of other demographic groups, of music from the year associated with the track;
• selecting, by the server system, content for the user, based on the first metric;
• and
• by the server system, providing the selected content to a client device associated with the user.