Dark Earth: Anthropogenic Amazon
(2021)
15 minutes
2,2,2,2 2,2,1,0 3perc. Hp. Strings
Performance Information
Commissioned by the Indianapolis Chamber Orchestra
Schrott Center for the Arts, Indianapolis, IN. Indianapolis Chamber Orchestra; Matthew Kraemer, conductor. November 2021.
Butler County Symphony Orchestra. Matthew Kraemer, conductor. November 2022.

Photo by Devin Kaselnak on Unsplash
About
The title Dark Earth refers to Terra preta—a remarkably fertile, deep-black soil found throughout the Amazon Basin. Unlike the surrounding low-fertility earth, Terra preta is anthropogenic, created thousands of years ago by indigenous populations who mixed charcoal, bone, and organic matter into the ground. This stable, nutrient-rich soil challenges the myth of the Amazon as a "pristine" wilderness untouched by man. Instead, it reveals the rainforest as a profound product of human stewardship—a landscape cultivated for over 8,000 years.
This realization prompted a reflection on our increasingly fractured relationship with the environment. In collaboration with video artist Mike Halerz, we identified "distance" as a primary hurdle in environmental advocacy; because we do not interact with the Amazon daily, we feel disconnected from its fate. Dark Earth seeks to bridge that gap, reminding us that humanity has always been inextricably linked to this forest.
Rather than utilizing "nature sounds," the music represents the Amazon through the vibrant human cultures that thrive within it. The score weaves together three distinct folk styles from the region:
- Capoeira (Brazil): Featuring the percussive, twanging textures of the berimbau.
- Calipso del Callao (Venezuela): A syncretic style from the Guayana region blending Caribbean, Trinidadian, and Venezuelan influences.
- Chicha (Peru/Colombia): An Amazonian cumbia that emerged as a cultural powerhouse in the mid-20th century.
The work is organized into cycles that expand in duration to mirror the passage of geological time. In each cycle, a musical style is introduced in its "pure" form before being subjected to harmonic and rhythmic distortion. As the "wheel" turns, each rotation unleashes a greater level of upheaval, culminating in a final, terrifying chaos.
This musical disintegration serves as a warning: the destruction of the Amazon is not merely an environmental loss, but a cultural and human one. Out of the wreckage, a solemn chorale emerges—a collective call to action, urging us to recognize our shared responsibility in ensuring the survival of our planet.