Location based playback system control

1. A tangible, non-transitory computer-readable medium having stored therein instructions executable by one or more processors to cause a mobile device to perform a method comprising:

displaying, on a touch-screen graphical display within a first control interface of a controller application, a control to select among playback devices of a media playback system;

receiving, via the first control interface on the touch-screen graphical display, touch-input data indicating a selection of a first playback device for playback of audio content;

in response to the touch-input data indicating the selection of the first playback device, displaying, on the touch-screen graphical display, a second control interface of the controller application, the second control interface including one or more playback controls to control playback by the first playback device;

receiving, via the second control interface on the touch-screen graphical display, input data indicating a command to play back the audio content;

determining whether the mobile device is in proximity to the first playback device;

if the mobile device determines that the mobile device is within a given proximity to the first playback device, transmitting, via a network interface, one or more commands to instruct the first playback device to play back the audio content; and

if the mobile device determines that the mobile device is outside the proximity to the first playback device, displaying, on the touch-screen graphical display, a prompt indicating that the mobile device is the outside the given proximity to the first playback device and a selectable control that, when selected, transmits the one or more commands to instruct the first playback device to play back the audio content.

2. The tangible, non-transitory computer-readable medium of claim 1 , wherein the one or more playback controls include a play/pause button, and wherein the input data indicating the command to play back the audio content comprises input data indicating selection of the play/pause button.

3. The tangible, non-transitory computer-readable medium of claim 1 , wherein one or more third control interfaces include a list of audio tracks available from a streaming media service, and wherein the input data indicating the command to play back the audio content comprises input data indicating selection of one or more particular audio tracks from the list of audio tracks.

4. The tangible, non-transitory computer-readable medium of claim 1 , wherein the second control interface is substantially full-screen, and wherein the controller application includes a substantially full-screen controller interface corresponding to each playback zone of the media playback system, wherein the first playback device corresponds to a first zone.

5. The tangible, non-transitory computer-readable medium of claim 1 , wherein determining whether the mobile device is in proximity to the first playback device comprises determining that the mobile device is in proximity to a second playback device, wherein a first zone of the media playback system includes the first playback device and a second zone of the media playback system includes the second playback device.

6. The tangible, non-transitory computer-readable medium of claim 1 , wherein the control to select among playback devices of the media playback system comprises a list of playback devices available in the media playback system, and wherein the touch-input data indicating the selection of the first playback device for playback of audio content comprises touch-input to select the first playback device from the list of playback devices available in the media playback system.

7. The tangible, non-transitory computer-readable medium of claim 1 , wherein the method further comprises:

receiving, via the prompt on the touch-screen graphical display, input data indicating selection of the selectable control that, when selected, transmits the one or more commands to instruct the first playback device to play back the audio content; and

in response to the input data indicating selection of the selectable control, transmitting the one or more commands to instruct the first playback device to play back the audio content.

8. A method comprising:

a mobile device displaying, on a touch-screen graphical display within a first control interface of a controller application, a control to select among playback devices of a media playback system;

the mobile device receiving, via the first control interface on the touch-screen graphical display, touch-input data indicating a selection of a first playback device for playback of audio content;

in response to the touch-input data indicating the selection of the first playback device, the mobile device displaying, on the touch-screen graphical display, a second control interface of

the controller application, the second control interface including one or more playback controls to control playback by the first playback device;

the mobile device receiving, via the second control interface on the touch-screen graphical display, input data indicating a command to play back the audio content;

the mobile device determining whether the mobile device is in proximity to the first playback device;

if the mobile device determines that the mobile device is within a given proximity to the first playback device, the mobile device transmitting, via a network interface, one or more commands to instruct the first playback device to play back the audio content; and

if the mobile device determines that the mobile device is outside the proximity to the first playback device, the mobile device displaying, on the touch-screen graphical display, a prompt indicating that the mobile device is the outside the given proximity to the first playback device and a selectable control that, when selected, transmits the one or more commands to instruct the first playback device to play back the audio content.

9. The method of claim 8 , wherein the one or more playback controls include a play/pause button, and wherein the input data indicating the command to play back the audio content comprises input data indicating selection of the play/pause button.

10. The method of claim 8 , wherein one or more third control interfaces include a list of audio tracks available from a streaming media service, and wherein the input data indicating the command to play back the audio content comprises input data indicating selection of one or more particular audio tracks from the list of audio tracks.

11. The method of claim 8 , wherein the second control interface is substantially full-screen, and wherein the controller application includes a substantially full-screen controller interface corresponding to each playback zone of the media playback system, wherein the first playback device corresponds to a first zone.

12. The method of claim 8 , wherein determining whether the mobile device is in proximity to the first playback device comprises determining that the mobile device is in proximity to a second playback device, wherein a first zone of the media playback system includes the first playback device and a second zone of the media playback system includes the second playback device.

13. The method of claim 8 , wherein the control to select among playback devices of the media playback system comprises a list of playback devices available in the media playback system, and wherein the touch-input data indicating the selection of the first playback device for playback of audio content comprises touch-input to select the first playback device from the list of playback devices available in the media playback system.

14. The method of claim 8 , wherein the method further comprises:

receiving, via the prompt on the touch-screen graphical display, input data indicating selection of the selectable control that, when selected, transmits the one or more commands to instruct the first playback device to play back the audio content; and

in response to the input data indicating selection of the selectable control, transmitting the one or more commands to instruct the first playback device to play back the audio content.

15. A mobile device comprising:

a network interface;

a touch-screen graphical display;

one or more processors;

data storage having stored therein instructions executable by the one or more processors to cause the mobile device to perform a method comprising:

displaying, on the touch-screen graphical display within a first control interface of a controller application, a control to select among playback devices of a media playback system;

receiving, via the first control interface on the touch-screen graphical display, touch-input data indicating a selection of a first playback device for playback of audio content;

in response to the touch-input data indicating the selection of the first playback device, displaying, on the touch-screen graphical display, a second control interface of the controller application, the second control interface including one or more playback controls to control playback by the first playback device;

receiving, via the second control interface on the touch-screen graphical display, input data indicating a command to play back the audio content;

determining whether the mobile device is in proximity to the first playback device;

if the mobile device determines that the mobile device is within a given proximity to the first playback device, transmitting, via the network interface, one or more commands to instruct the first playback device to play back the audio content; and

if the mobile device determines that the mobile device is outside the proximity to the first playback device, displaying, on the touch-screen graphical display, a prompt indicating that the mobile device is the outside the given proximity to the first playback device and a selectable control that, when selected, transmits the one or more commands to instruct the first playback device to play back the audio content.

16. The mobile device of claim 15 , wherein the one or more playback controls include a play/pause button, and wherein the input data indicating the command to play back the audio content comprises input data indicating selection of the play/pause button.

17. The mobile device of claim 15 , wherein one or more third control interfaces include a list of audio tracks available from a streaming media service, and wherein the input data indicating the command to play back the audio content comprises input data indicating selection of one or more particular audio tracks from the list of audio tracks.

18. The mobile device of claim 15 , wherein the second control interface is substantially full-screen, and wherein the controller application includes a substantially full-screen controller interface corresponding to each playback zone of the media playback system, wherein the first playback device corresponds to a first zone.

19. The mobile device of claim 15 , wherein determining whether the mobile device is in proximity to the first playback device comprises determining that the mobile device is in proximity to a second playback device, wherein a first zone of the media playback system includes the first playback device and a second zone of the media playback system includes the second playback device.

20. The mobile device of claim 15 , wherein the control to select among playback devices of the media playback system comprises a list of playback devices available in the media playback system, and wherein the touch-input data indicating the selection of the first playback device for playback of audio content comprises touch-input to select the first playback device from the list of playback devices available in the media playback system.