This is a direct notation from LiveDJFlo's video "Tiësto Adagio for Strings - piano cover acoustic instrumental unplugged by LIVE DJ Flo". Watch that video here: http://www.youtube.com/watch?v=j09GVvrJXCk
Notes:
Throughout the piece, I usually just play single quaver alternating octaves in the left hand, instead of the semiquaver ones like LiveDJFlo does. (I don't really have the stamina required to do so.)
Bars 23-33: The left-hand notes should be kept down once played, and only lifted if it's the end of the phrase, or they need to be replayed. It was hard to notate this so I just used the pedal notation to try and show it.
Bar 55: The last notes could be left with fermatas (pauses) on them, to resonate the last chord.
