Novelty noise alias of Ryder Thomas meant to satirize the real life school and band of the same name
It is not actually the Mitchell High School Mountaineer Band

One album was released under this alias when Ryder went to a different school. It used to be on all streaming services, but when Ryder was forced to go the school, the principal of the school forced him to take it off streaming services. The album is still listenable through the recrecs bandcamp page