As of October 2023, there is no widely recognized artist by the name of Gustav Krivinka in mainstream music history. It is possible that he is an emerging artist or a figure in a niche genre that has not yet gained significant attention in broader music discourse. Without specific information or notable works attributed to him, it's difficult to assess his genre, impact, or contributions to music. If you are referring to a specific project or a lesser-known artist, more context may help in providing a detailed overview. Alternatively, if he is a fictional character or a misspelling of another artist's name, please clarify so I can offer the relevant information.