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Mario Odyssey knows what chord is playing on the soundtrack and uses that info when playing musical sound effects.

youtu.be/U5-YDxH6It8

@mogwai_poet I've heard this feature first in Super Mario Maker, where a sound effect is played when you select a new type of object to create a level. And the pitch is coordinated with the music bed current chord.
Jim Stormdancer @mogwai_poet

@hypolite Yeah it speaks to a level of polish you almost never see