if you have read the Twilight series and remember the song that edward wrote for belle... well it exists now XD
Check it out, it is one of the best piano songs i have heard!
https://www.youtube.com/results?search_query=bellas+lullaby+edward+twilight&search_type=&aq=f
i bet one of these ....many.... video clips has a decent version, i don't know if there is multiple versions, but the one i heard was just a piano....
anyhow enjoy!
its kinda slow, but it sounds nice anyhow ^^