Kingdom Hearts Birth by Sleep
Kingdom Hearts Birth by Sleep Final Mix
Kingdom Hearts χ
Kingdom Hearts Union χ
Kingdom Hearts 0.2 Birth by Sleep -A fragmentary passage-

The Key

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Kingdom Hearts Birth by Sleep
The Key
Theme Notes.png
Arranger Yoko Shimomura
Composer Yoko Shimomura
Length 2:40

The Key is a musical composition by Yoko Shimomura that appears in the Kingdom Hearts series.

Appearances

"The Key" appears in both cutscenes and boss battles. It is used in climatic moments, especially scenes related to Keyblades or the χ-blade.

Kingdom Hearts Birth by Sleep

Ventus's Story

  • Badlands: "Former Master", "Seeking the Truth"

Aqua's Story

Kingdom Hearts χ[chi]

  • Keyblade War: "Luxu's War", "As the Bells Toll"

Kingdom Hearts Union χ[Cross]

  • Main Story: "Fall to Darkness", "Separated"

Kingdom Hearts 0.2 Birth by Sleep -A Fragmentary Passage-

Composition

Albums