Conditional Content Enhancement

A non-transitory computer-readable medium, wherein the non-transitory computer-readable medium is provisioned with program instructions that, when executed by at least one processor, cause a system to:

• cause a first playback device of a media playback system to play back a first version of audio content;
• cause a second playback device of the media playback system to play back the first version of the audio content in synchrony with playback of the first version of the audio content by the first playback device;
• while the first and the second playback devices are synchronously playing back the first version of the audio content, determine a change in one or more characteristics of the media playback system;
• based on the change to the one or more characteristics, identify a second version of the audio content;
• and
• cause the second playback device to transition from playing back the first version of the audio content to playing back the second version of the audio content in synchrony with the playback of the first version of the audio content by the first playback device, wherein the first and second versions of the audio content are transmitted by at least one remote computing device configured to communicate with the media playback system over at least one data network.

A method carried out by a system, the method comprising:

• causing a first playback device of a media playback system to play back a first version of audio content;
• causing a second playback device of the media playback system to play back the first version of the audio content in synchrony with playback of the first version of the audio content by the first playback device;
• while the first and the second playback devices are synchronously playing back the first version of the audio content, determining a change in one or more characteristics of the media playback system;
• based on the change to the one or more characteristics, identifying a second version of the audio content;
• and
• causing the second playback device to transition from playing back the first version of the audio content to playing back the second version of the audio content in synchrony with the playback of the first version of the audio content by the first playback device, wherein the first and second versions of the audio content are transmitted by at least one remote computing device configured to communicate with the media playback system over at least one data network.