Erasmus Bielfeldt (1682–1753) was a German organ builder of the 18th century, likely born in Stade. Although it is suggested that he may have been a student of the renowned organ builder Arp Schnitger, this connection remains unproven. Bielfeldt's organ designs share similarities with Schnitger's, particularly in their tonal qualities, but notably, they do not include Rückpositive (rear positives), which distinguishes his style. His early career included significant work in Lüneburg, where he married and started a family. He then worked in Celle and Bremen, constructing new organs for various churches and undertaking numerous repairs.

Bielfeldt's most famous work is the organ in St. Wilhadi Church in Stade, completed in 1736. His career primarily spanned the region between the Elbe and Weser rivers, and he is credited with building at least eight organs. Despite his modest output compared to some of his contemporaries, Bielfeldt's work has left a lasting impact on the organ landscape of northern Germany. He passed away in 1753 in Hoya, at the age of 70.

https://de.wikipedia.org/wiki/Erasmus_Bielfeldt