Download link is not shared since this is just a showcase of the different instruments. You can get the soundtracks elsewhere such as the link below:
https://store.steampowered.com/app/1484430/Mega_Man_9_Sound_Collection/

Time Stamps:
0:01 Opening 1
0:34 Opening 2
2:12 Opening 3
2:41 Title
3:03 Menu
3:17 Stage Select
4:13 Game Start
4:21 Concrete Jungle (Concrete Man Stage)
6:02 Thunder Tornado (Tornado Man Stage)
8:27 Splash Blue (Splash Woman Stage)
10:20 Plug Electric (Plug Man Stage)
12:09 Jewel Temptation (Jewel Man Stage)
13:35 Hornet Dance (Hornet Man Stage)
15:06 Magma Burning (Magma Man Stage)
16:30 Galaxy Fantasy (Galaxy Man Stage)
18:05 Boss
19:17 Stage Clear
19:23 Get a Weapon
19:30 Shop
20:19 Rush Jet
20:41 Suspense
22:10 Dr. Wily Castle
22:18 Flash in the Dark (Dr. Wily Stage 1)
24:05 We're the Robots (Dr. Wily Stage 2)
26:53 Strange World (Dr. Wily Stage 3)
28:40 Castle of Evil (Dr. Wily Stage 4)
29:23 Wily Machine
30:28 Ending
30:45 Staff Roll
34:01 Overdrive Scramble (Special Stage)
35:51 Maze of Death (Endless Stage)
39:29 Game Over