The Dynamic Music of CELESTE - A Deep Dive (1/?)

We all know Celeste has some adaptive music, but how was it actually done? In this video, we will look at the adaptive soundtrack of Celeste (made using FMOD) and I will explain the methods used to create a dynamic music system in the game Celeste.
Note: I'm not a native speaker and it shows, so I tried to combine the best takes of every line into one somewhat cohesive audio clip. Captions are available if you can't understand me (I won't judge).

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Links:

Celeste on Steam:
https://store.steampowered.com/app/50...

Download the FMOD Project here:
https://www.fmod.com/download#learnin...

"This FMOD Project and the content herein has been released in the effort of contributing to education and welcoming discussion in game development. [...] Please respect our choice to release this project by using it as intended - for non-commercial personal and/or educational purposes only." (From the project license)

My music on Newgrounds:
https://agentjo.newgrounds.com/

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Chapters:
0:00 Intro
0:35 Terminology
1:38 Prologue
2:01 Forsaken City
2:45 Old Site
4:21 Celestial Resort
6:37 Scattered and Lost
9:46 Golden Ridge
12:01 End of part 1
13:16 What's in part 2?
14:01 Outro

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Music used (in order):
(Note that most songs come from FMOD and therefore might not reflect what the song sounds like on streaming services)

Christa Lee - Celestial Resort (Good Karma Mix)
Agent_Jo - Orange (unpublished)
Lena Raine - Prologue
Lena Raine - First Steps
Lena Raine - Madeline and Theo
Lena Raine - Resurrections
Lena Raine - Awake
Lena Raine - Spirit of Hospitality
Lena Raine - Scattered and Lost
Lena Raine - Golden
Lena Raine - Anxiety
Agent_Jo - Power Charge (unpublished)
Agent_Jo - Outro (unpublished)