US Patent 10359990 Audio track selection and playback

A computing device detects a first playback condition indicating a presence of a user in a zone in a media playback system. The computing device determines a second playback condition that corresponds to the detected presence of the user in the zone. Characteristics of at least one audio track are compared to (i) the indication of the presence of the user in the zone and (ii) the second playback condition. Audio content is identified based on the comparison and the identified audio content is played in the zone.