For HSR concert, I feel they were going along the lines of Honkai concerts as opposed to Genshin ones, Honkai ones have plenty of remixes of character themes and original music, while Genshin focuses on the pure essence of their own music But yea the Honkai series is def the love child of hoyo
I honestly think this style of concert is super cool bc it's a lot more reminiscent of attending musical artist (like singers or bands) concerts irl!!! IT'S SO EPICCCC
The ‘trumpet‘’ played during blade's theme is called suona（唢呐）, it's a Chinese traditional instrument. You can often hear it whether in someone's funeral or someone's wedding in China.
