Various systems and methods described above permit a user's content
experience (e.g. music playing experience) to be monitored and for
metadata describing this experience to be collected. This metadata can be
dynamically updated as a user experiences media content and then used to
impart to the user a personalized experience that is tailored to that
specific user. A user's metadata can, in some instances, provided across
a wide variety of computing devices on which the user may experience the
media content, thus standardizing the user's personalized media
experience. In addition, intelligent or "smart" playlists can be provided
which, in some instances, can be dynamically and automatically updated to
reflect current user experiences, thus providing a highly personalized
and enjoyable content experience.