The Harmonie Society of Detroit, also known as the Harmonie Club of Detroit, was an organization that allowed German American members of the Detroit community the opportunity to come together and sing traditional German music. The building, which still stands at 267 East Grand River, became a gathering place for German Americans. The collection consists of organizational records, sheet music and songbooks used by the members of the club. Also included are photographs, audio recordings, and programs from German music festivals.
The materials within the Harmonie Society of Detroit (or, the Harmonie Club) records cover the organizations operations and history. The bulk of the collection consists of sheet music that was used by the Society members.