Perksa | Battle! Elite Four (In-Game Mix) – Pokémon Scarlet & Violet @Perksa_ | Uploaded December 2022 | Updated October 2024, 1 hour ago.
Top Champion: youtu.be/6C7_aOYBNA0
If you were one the of the lucky ones to play the game for long enough in a single session (such as me...), this would be the elite four theme you would have heard. At first, I thought it was intentional and that it would build up with more battles. It did not.