Which composition by Koji Kondo would you consider as his magnum opus?

Here’s a list of every music tracks he’s credited for: [https://nintendo.fandom.com/wiki/Koji_Kondo#Song_Credits](https://nintendo.fandom.com/wiki/Koji_Kondo#Song_Credits)

Personally, I can’t decide between Bowser’s theme from Yoshi’s Island, Dire, Dire Docks from Super Mario 64 and Song of Healing from Majora’s Mask.