Stockholm-based composer Ellen Arkbro's 'For Organ and Brass' is comprised of works that focus on tuning, intonation and harmonic modulation.

The title composition was written for an organ with a specific kind of historical tuning known as meantone temperament. It was only after locating an appropriate instrument—the Shererorgel dating back to 1624 in St. Stephen’s Church in Tangermünde, Northeastern Germany—-that Arkbro set about recording both for organ and brass and its counterpart, three.

“Hidden within the harmonic framework of the Renaissance organ are intervals and chords that bare a close resemblance to those found in the modalities of traditional blues music,” explains Arkbro. “The work can be thought of as a very slow and reduced blues music.”

The work moves gradually through a series of long, sustained tones played by the organ and in parallel by a brass trio comprised of horn, tuba, and trombone. Arkbro’s treatment of pitch resembles the tuning strategies of La Monte Young. The brass parts were performed by brass trio Zinc & Copper.

In Arkbro’s words, “the brass instruments and the organ fall into patterns of interaction in which a new breathing instrument emerges.” three, which follows the 20-minute title work, deploys the same principles of harmonic relativity. In removing the organ from the instrumentation and switching to a different meter, three acts as an intimate counterpoint to the ritual drone cycles of the title piece.

Ellen Arkbro is currently studying for her Master’s degree in music composition at the Royal College of Music in Stockholm. Her work has been performed in Brooklyn, Stockholm, Norberg, Bologna, Gothenburg, Berlin, Birmingham, and Malmö, and on Swedish National Radio.

'For Organ and Brass' was recorded in Tangermünde, Germany in September 2016. The performers were Johan Graden (organ), Elena Kakaliagou (horn), Hilary Jeffery (trombone), and Robin Hayward (tuba).

1. For organ and brass 20:08
2. Three 11:51
3. Mountain of Air 07:26