Here's a breakdown of why:
* Different Generations: SoulSilver is from Generation IV, while the Azule Flute channel is from Generation IV.
* Game Features: SoulSilver doesn't have the "Radio" feature that allows you to listen to different channels like the Azule Flute.
What you can do in SoulSilver:
* Listen to the Radio: You can access the Radio in SoulSilver, but it only has a few channels with different music.
* Find the Azule Flute: If you want the Azule Flute, you'll need to play a game where it's available (Diamond, Pearl, Brilliant Diamond, or Shining Pearl).
Let me know if you have any other questions about Pokémon SoulSilver!