The point of these images are to show how systems now use tagging and sharing based on location. All of these are good ideas but lack the zest I want my system to have. What makes my solution better than what's out there and what makes it different?
Another idea is looking at existing iPhone applications and tools that recommend songs. As mentioned before, the Ping and Genius options in iTunes work, but they lack the emotional connected and give you artists that sound like other artist you enjoy. Not many people care about finding new bands as they once did when they were younger. Entering an age and personalizing what you want to get out of the application is what will set my system apart.