The violinist has a tumor on his cerebellum. Will he still be able to play?

no, it cannot. Since the cerebellum is responsible for muscle tone, coordination of movements, playing the violin must involve the muscles of the forelimbs.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.