The lights are on
Are some of you gamers thinking that you can't change Music in Sonic Generations?
Well, i got something to help you fix that thinking. when you are at either a Stage from the Past/Future or at a Boss Fight/Rival Battle, Go to the Change Music Selection and find those Sonic Tunes you've known from Past Decade. After you selected the Tune Playing, go back one time and play the Stage.
After the load is done, you'll start to hear that Sonic Tune you selected in Sonic Generations.