As of October 2023, there is no widely recognized artist named Sven Johnson in the music industry. It’s possible that he is an emerging artist or a local musician whose work has not yet gained broad recognition. Without more specific information or context about his music, genre, and contributions, it’s challenging to provide a factual overview. If Sven Johnson is a fictional or lesser-known artist, please provide additional details or clarify the context, and I would be happy to assist with more information or a different request!