A concept for an iPhone app that plays soundtracks based on what temperature you’d like to perceive. So if it’s really hot and you don’t have any air-conditioning, you can turn on arctic tundra to cool off a little. Or if you’re sick and have the chills, you can turn on crackling fire to warm up. The soundtracks would be various looped sounds from nature that could be played in the background while you continue to use your phone or play music.