Organ Works by gamut inc – Compositions for Hyperorgan

The organ works of gamut inc explore algorithmic composition for computer-controlled pipe organ. The AGGREGATE series investigates automated register changes, extreme note density, and machine-like possibilities unavailable to human performers.

AGGREGAT #11 for Hyperorgan (2022)

AGGREGATE is a growing number of pieces by gamut inc exploring the possibilities of algorithmic composition for organ. Some organs can be controlled by computer via a MIDI interface. This automation of the instrument opens up the possibility for compositions that could not otherwise be played by human hands; it brings the machine-like side of the organ to the fore and makes it seem like a synthesiser.

While a variety of sounds can be synthesised on the organ through registration — i.e. selecting various combinations of stops — the instrument is built with a non-dynamic key action, meaning the notes always sound at a constant volume as defined by the respective stops and the wind strength. Volume can be varied by means of the swell box shutters, but not separately for each individual note. If the organ were a synthesiser, then it would be one in which attack and decay are defined and fixed by the way the pipes are constructed. However, various attacks and decays can be simulated with extremely short repeating notes that gradually become longer or shorter. It is not possible for a musician to play these notes, but they can be programmed and played back by controlling the organ by computer. It is these whirring and fluttering notes, shimmering masses, and automated stop changes in particular that we investigate in the AGGREGATE series.

AUTOMATED PIPE ORGANS / HYPERORGANS

Digitalisation advances ever further into areas beyond the virtual – for the pipe organ, this opens up new artistic possibilities. All of the instrument’s parameters can now be controlled by computer via interfaces, while the sound is still created in the pipes of the organ. In this way, a meshing of instrumental and electronic music, the possibilities of which are largely untapped, can be achieved. gamut inc‘s international concert series and festival AGGREGATE exposes this potential for artistic innovation in organ music of the 21st century. Composers with differing musical backgrounds and orientations create new pieces for automated pipe organs. Contemporary electronics, Neue Musik, avant-garde pop and noise music interweave with one another. Pioneering artistic strategies are explored, from purely automated organ concerts via combinations with instrumentalists to real-time control and synchronisation with electronics. AGGREGATE pursues the fundamental questions that computer controlled instrumental music poses: virtuosity and its overcoming, the limits of perception of highly compressed musical events, the crossovers and links between electronic and acoustic music, objective interpretation and the effects of mechanically precise reproduction.

CONTROL

MIDI technology developed in the 1980s is means by which organs can be controlled by computer. Current technology enables MIDI notes to be created in real time and immediately checked on the instrument. Algorithmic composition programmes enable intuitive composition processes with a large amount of material. Thousands of notes and parameters can be generated and manipulated in the shortest of time. The computer-controlled organ is the provisional and logical climax in the development of the instrument, which has been continually updated using the newest mechanical achievements since its invention.

AGGREGATE Festival pipe organ concert Berlin — organ console at Kaiser Wilhelm Gedächtniskirche Berlin

gamut inc at Église de Gesù Toulouse, May 2024, exploring Yves Rechsteiner‘s modular organ L‘éxplorateur (built by Tony Decap)

full version recorded at Kaiser-Wilhelm Gedächtniskirche 2022 by Antonio Pulli
composed 2022 by gamut inc during a 3-month residency at Villa Kamogawa in Kyoto, Japan
performed in Paris (St Esprit), Porto (Igreja da Lapa @ Serralves em Festa festival), Berlin (KWG), Cologne (St. Aposteln @ Romanischer Sommer Festival), Stavanger Concert House, Barcelona (Palau Güell @ Sónar Festival)

Breath of Seven Breasts (2024)

recorded at Église du Gesù de Toulouse 2024 by gamut inc
composed 2024 by gamut inc during a residency at Toulouse Les Orgues, France
short-listed for the Capital of Culture 2025 by Raster Open Call

AGGREGAT #10: Breathtaking for Hyperorgan (2021)

performed and recorded at Orgelpark Amsterdam using the automated Utopa organ (system SINUA)
This piece makes extended use of automated register changes