Sonic 3D Blast vs. Sonic Adventure Music Comparison

I'm surprised no one has made this video yet. Sonic Adventure reuses some of the tracks from 3D Blast on Sega Genesis but they appear to be based on the Sonic 3D Demo Takes. Here I compare all 3 versions for you to see the similarities.
All music made by Jun Senoue
0:00 Intro
0:31 Example 1
4:55 Example 2
10:21 Example 3
13:16 Conclusion
13:44 Bonus Example