Have you ever found yourself listening to a song and realized it reminded you of a moment, memory, or place in your past? This year, The 2011 Grammys are using the awards show and those it celebrates to introduce a new mobile application for users of social media to map the meaning of this music with the Music Mapper Application.

Available on Android and iPhone platforms, the Music Mapper app is a combination of Google Maps, SimpleGeo and Rdio. Users tag locations of their current locations and add memories, as notes, about the relationship between the music, time, and place.

The app works by capturing the music and the moment you want to remember it by at the same time. If you were at a party with friends you hadn’t seen since high school, and your favorite Backstreet Boys song was – for some crazy ironic reason – on rotation, you could search for your location, drop it onto the map, look up the Backstreet Boys song, and leave a little note about your reunion. You can easily share your story and related media on Facebook, Twitter, Foursquare, and Flickr, too.

Music Mapper is easy to download and quick to sign up for – no computer is necessary. The Music Mapper app already has quite a few users, aside from celebrities being tapped to launch the app, so there are also likely several people in your neighborhood already tagging and sharing their music-related memories. Shockingly, someone in a nearby neighborhood in Seattle was just listening to Nirvana. They asked “What would Kurt say about this place now?” (I wonder what he would say about people using this app to ask that.)

The Music Mapper app is associated with the Grammy’s Music Is Life Is Music, where you can tag locations other than your current – great for noting memories from the past. Together, the Music is Life is Music website streams your stories into a timeline that, aside from your own, is integrated with all other users to create one big picture of music and how it affects our lives.

Have you tried the Music is Life is Music app yet? Would you ever use an app that tells your “story”?