Really cool beat, the rhythms are so good, like others mentioned, the heartbeat word-painting is a nice touch, and the kinda, ticking clock sounds before the last verse. Lots of really intricate cool little details actually. And the lyrics! Very poetic, very tragic, in that special little way where if you just listen to the melody, it sounds a lot less sad than when you dig deeper into the words. Love that, love this song. Excellent work.