Dejatune: Reliving your music experience

I'm trying to map-out an idea that involves connecting fans with their live music experience. If you are at festival/concert, there is A LOT of commotion going on - you find yourself: living in the moment, sampling different music, jumping around to different stages, talking to different friend groups, drinking alcohol, taking pictures and videos, etc...…..the last thing you want to worry about is remembering a specific song that you liked. I want to take the idea past shazam..and deliver personalized, full playlists, so that attendees have a way to stream what they heard.