Group volume control

A computing device comprising:

• one or more processors;
• a user interface;
• and
• tangible, non-transitory computer-readable medium having instructions stored thereon that, when executed by the one or more processors, cause the computing device to perform functions comprising:
• displaying, on a user interface, (i) a first volume indicator along a first volume scale, wherein the first volume indicator is at a first position corresponding to a first volume setting of a playback zone of a media playback system, and (ii) a second volume indicator along a second volume scale, wherein the second volume indicator is at a second position corresponding to a second volume setting of a zone group in the media playback system, wherein the zone group comprises the playback zone, and wherein the second volume setting is based on at least the first volume setting;
• after displaying the first volume indicator at the first position and the second volume indicator at the second position, receiving, via the user interface, an input corresponding to the second volume indicator to cause the first volume setting to change to be equal to the second volume setting;
• and
• in response to receiving the input corresponding to the second volume indicator, (i) displaying the first volume indicator at a third position along the first volume scale that indicates the first volume setting is equal to the second volume setting indicated by the second volume indicator at the second position, and (ii) transmitting, to at least one playback device in the playback zone, a command to adjust a playback volume of the playback zone to a volume setting corresponding to the third position along the first volume scale.

A method comprising:

• displaying, by a computing device on a user interface, (i) a first volume indicator along a first volume scale, wherein the first volume indicator is at a first position corresponding to a first volume setting of a playback zone of a media playback system, and (ii) a second volume indicator along a second volume scale, wherein the second volume indicator is at a second position corresponding to a second volume setting of a zone group in the media playback system, wherein the zone group comprises the playback zone, and wherein the second volume setting is based on at least the first volume setting;
• after displaying the first volume indicator at the first position and the second volume indicator at the second position, receiving, by the computing device via the user interface, an input corresponding to the second volume indicator to cause the first volume setting to change to be equal to the second volume setting;
• and
• in response to receiving the input corresponding to the second volume indicator, (i) displaying, by the computing device on the user interface, the first volume indicator at a third position along the first volume scale that indicates the first volume setting is equal to the second volume setting indicated by the second volume indicator at the second position, and (ii) transmitting, by the computing device to at least one playback device in the playback zone, a command to adjust a playback volume of the playback zone to a volume setting corresponding to the third position along the first volume scale.