Ambrosius Metzger is not a widely recognized artist in mainstream music history, and there may be some confusion regarding their significance or contributions. It is possible that you are referring to a lesser-known musician or a regional artist. If you meant a different artist or if Ambrosius Metzger has gained prominence after my last update in October 2023, please provide additional context or clarify the name, and I'd be happy to help with the relevant information.