This is sad techno, and it's beautiful the way it's done. The tune starts with the main melody being played by only a piano, and that same theme, as Fieari says, stays in the seemingly wild and happy, fairly mainstream-sounding techno beat that comes after it. After the first long drum roll, a beat comes in and the tune speeds up. It's a proud theme, the way it's done, but the original sadness is kept. When the main tune fades away, leaving the beat to fend for itself, there's an empty feeling, and then the tune comes back, on piano, and the drums go away after another roll. One more drum roll and you're back to the bittersweet techno. The end of the song reminds us of its sadness and loneliness, and the listener is forced to listen again. And again. And again. Because it's so very well done, and moving emotionally -- a thing which most techno simply doesn't do for me.