Sonic Generations does a lot of good things for the Sonic the Hedgehog franchise.  The gameplay was exactly what a lot of fans were looking for in recent games, but not given.  The 2nd great thing they did was the music.  They somehow managed to blend classic themes and make them sound more current and not ruin the charm of the original music.  Sky Sanctuary Zone has an oddly calming sound from Sonic & Knuckles that made it a track that I enjoy listening to in all situations.  This version has an uplifting feeling to it.  It makes me feel like I am ready to take on whatever life throws at me.