I tried to play this song with only four chords. The track is played live with 3 drum variations, 1 oriental drum sample, 3 main sounds (two electric pianos and a strings) and a simple pick bass.
The track is unmastered and has not been tweaked in post. The levels were adjusted as I played along and there was a slight phaser effect on the electric pianos, and a generous amount of L/R delay was applied across the main instruments. Everything is processed in PA900.