Piano Man (Ereri, song inspired/based ^-^)

~Based on Billy Joels 'Piano Man', if you havent heard it, listen to it before reading, PLEASE ITS AMAZING!~
^~^
Its 9:00PM on a Saturday as the regular crowd shuffles in to see Eren playing the piano on a low stage, a melancholy smile on his face. Levi was calmed, serenaded, by this tune that seemed to somehow match Erens melancholy smile.