Martin Ott Opus 91 at First Congregational Church
Martin Ott Opus 91 was commissioned in 1997 for First Congregational Church in Battle Creek, Michigan. The stop specification gives 65 stops, 71 ranks, two extensions, and two electro-pneumatic voices, with electric slider chests and electric stop action.
Architecture and placement: the Battle Creek sanctuary renovation
The church invited Martin Ott to assist with a new organ in October 1996. Albert Bolitho, the minister of music, worked with the commission during a major renovation of the century-old sanctuary. Jefferson B. Riley of Centerbrook Architects and Planners served as architect, and Larry Kirkegaard of Kirkegaard & Associates as acoustician. It sought a more solid and colorful sound for the renovated sanctuary. The organ project brought Opus 91 into First Congregational Church, Battle Creek, Michigan. The interior actively shaped the commission: space for singers affected the installation, while the surviving narrative leaves several spatial questions open.
Balcony, chancel and positions on the floor set practical limits for an installation. Where the entry names one for Opus 91, it is a detail established by the project record rather than a broad guess about the building.
65 stops and 71 ranks: the scale of Opus 91
On paper, Opus 91 offers 65 stops drawn from 71 ranks. The two figures answer different questions: one counts console controls, the other pipe sets. An organ of this scale can distribute several choruses and solo colors, although that possibility must not be mistaken for a verified stop-by-stop plan. The number of manuals requires the complete stop specification. Its 2 listed extensions help show why stop and rank figures can differ. Arithmetic cannot reveal the builder's priorities; the disposition can.
Because ranks outnumber stops by 6 in Opus 91, at least some controls may represent compound pipework. According to the 65-stop summary for First Congregational Church, the abbreviated figures do not assign those ranks to divisions. The entry separately lists 2 extensions. The numerical relationship is helpful, but it is not a substitute for the disposition.
How the notes travel: the Battle Creek sanctuary renovation
Opus 91 used electric pull-down or electric slider-chest control. Signals from the playing console operated the note valves, while sliders selected the ranks admitted to wind. The written account says nothing about present response or maintenance.
An electrical action can bridge distance without long mechanical trackers. Whether Opus 91 used that freedom for its console or only inside the organ case depends on the recorded layout.
Inside the physical design: the Battle Creek sanctuary renovation
For Opus 91, the record records enough construction detail to discuss the installation without claiming to recreate the whole organ. Neither windchest drawings nor full case dimensions survive here.
For Opus 91, the organ case and console belong to the documentary story, not merely the decoration. Their arrangement preserves practical decisions made for this room.
The human side of the commission: the Battle Creek sanctuary renovation
The congregation found that its 1961 Casavant no longer met its needs, either mechanically or tonally. The organ project followed in August 1997; installation took place in stages during 1999 and 2000, and Bolitho played the dedicatory recital. The specification lists resources at the console, not the repertory heard in First Congregational Church. Concert programs, parish bulletins and recordings could build that outline into a richer listening history. What followed would need programs or institutional records.
The dated recital, concert or dedication identified above gives Opus 91 a fixed point in musical history. The musical record from First Congregational Church is incomplete here: it does not describe everything heard before or after that occasion.
Evidence, images and unanswered questions for Opus 91
This history draws on the company's Opus 91 project entry as it stood on February 6, 2020. Alongside the written account are 3 project-page images. The company grouped these files as its gallery for Opus 91. No photographer is identified beside these files. The surviving evidence can identify the commission without serving as a modern inspection report. New evidence should begin with the institution, a named photographic credit and a date.