main theme thread
https://www.youtube.com/watch?v=wbDmYQiQ3j8
https://www.youtube.com/watch?v=67v4rd3ePn0&t=24s
https://www.youtube.com/watch?v=stWae6r7Blw
https://www.youtube.com/watch?v=O3kwAahsD2A
https://www.youtube.com/watch?v=izWv6n3QdDE
https://www.youtube.com/watch?v=6kZ5TiSl2d8
https://www.youtube.com/watch?v=kzvZE4BY0hY
https://www.youtube.com/watch?v=SXKrsJZWqK0