There is more than one artist with this name:

1. Yenisei are a 5-piece instrumental post-rock band from Kraków, Poland. They released their debut album titled The Last Cruise in November of 2019. It was followed by their second album, Reflections, in October 2021.

Bandcamp

2. Yenisei is a minimal techno producer from St. Petersburg, Russia. He has been first heard on a local radio show Увы, where artists share their own music under fake names. It turned out to be Ilya Burtsev, better known as DJ Tennisist. His debut album under this moniker, Melancholy of Decay, was released in July 2020.

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