Martin Ott Opus 63 at Holy Trinity R.C. Church
The project identity dates Martin Ott Opus 63 to 1989 and associates it with Holy Trinity R.C. Church in Harlan, Kentucky. The specification gives seven stops and eight ranks with mechanical action.
Where the instrument stood: Holy Trinity's movable one-manual organ
Opus 63 was planned for the worship space at Holy Trinity R.C. Church. The most dependable room clues are concrete ones such as altar, balcony, windows or choir position; a general claim about the building's sound requires more evidence. The description includes no acoustic measurements.
For Opus 63, visible surroundings and measured acoustics must be kept separate. One can be checked against photographs; the other requires data or testimony from the room. That evidence has not yet surfaced.
7 stops and 8 ranks: the scale of Opus 63
The short specification lists 7 stops against 8 ranks. A rank is a set of pipes; a stop is the control through which the organist brings a resource into use. This is a small instrument by pipe-organ standards, though pitch levels and pipe families can still provide useful contrast. How many manuals the player had is not stated here. Without the stop names and pitches, any description of color would run ahead of the evidence.
There is a 1-rank gap between the two totals for Opus 63. It signals that stop and rank counts are structured differently, without revealing the exact compound stops involved. The figures invite questions that only the stop names can settle.
The playing action: Holy Trinity's movable one-manual organ
Pressing a key on a mechanical organ sets a train of parts in motion until a pallet opens at the windchest. That is the arrangement named for Opus 63. The surviving description does not record touch weight, wear or later maintenance.
Tracker layout links architecture and touch: distance, turns and couplers all affect the path. The short account of Opus 63 does not provide those shop dimensions.
How the instrument was arranged: Holy Trinity's movable one-manual organ
The source says that the design was replicated as Opus 56, Opus 63, and Opus 88, and gives a keyboard compass of 63/30. Every manual stop used a divided slider between keys f-sharp 31 and g32. To broaden the one-manual and pedal design, Martin Ott added a Pommer 16-foot and a Sesquialter 5 2/3-foot plus 3 1/5-foot from g32. These details help separate Opus 63 from nearby commissions in the firm's catalogue. The page stops short of a complete technical survey, which is a different kind of document.
Materials named for case or keys should not be treated as a tonal description. They tell us about craft and appearance; pipe material and voicing require their own evidence for Opus 63.
Listening history: Holy Trinity's movable one-manual organ
Except for the Subbass 16-foot section, the instrument was mounted on casters. Under the leadership of Brother Mark Ligett, OFM, the Franciscan monks of Holy Trinity Mission purchased it in 1996. At Holy Trinity R.C. Church, the organ may have met hymn singing, choral accompaniment and solo repertoire, but the project history must name the intended roles. Dated programs would show how Opus 63 was used after dedication. No dedicatory recital is named in the available material.
A specification describes potential; performance records describe use. The second kind of evidence is still missing for Opus 63.
Evidence, images and unanswered questions for Opus 63
The company entry for Opus 63, preserved from February 6, 2020, provides the project facts used here. The associated gallery contains 1 image. All belong to the dated gallery attached to the Opus 63 page. The old gallery identifies or credits 1 of its views. The page proves their association with the project, but it does not establish present condition or ownership. The best additions would be a credited recent image and the full specification.