Compose By Sonic.z.Hooves (aka Kelvin Fantaisie)
this calming and beautiful piano music is now available on "Ponies at Dawn - Celestial Planes" music album~
https://poniesatdawn.bandcamp.com/

want to play it yourself? heres the sheet music~
http://www.free-scores.com/download-sheet-music.php?pdf=74385
start practise it now and have fun~ :3

EqD Music of the Day
http://www.equestriadaily.com/2015/04/music-of-day-485.html#more
thanks everypony~ :3