There’s a quiet poetry in the way “Nefasphere” came to life. Fifteen years ago, in a college classroom in New Jersey, a young Ethiopian musician named Mikael Seifu met Ben Neill, a composer already known for his experiments with the Mutantrumpet, a hybrid instrument that fuses brass performance with electronic control.

Seifu was a student then, and was just beginning to shape what would become his signature sound: a fusion of ancient Ethiopian tonalities with the pulse and texture of global electronic music.

Neill was the professor, an emerging artist who had already collaborated with the likes of David Behrman, John Cage and La Monte Young.

Fast forward to 2025, and the conversation that began all those years ago has evolved into Nefasphere. The word nefas, from Amharic means “wind,” “breath,” or “spirit” and it’s an apt metaphor for what the music achieves – a flow of energy that moves through both artists, reshaping itself as it passes.

In the Worldwinds Mix, Neill and Seifu create a kind of ambient exhalation with long, flowing tones and circular patterns that expand and contract like the breath itself. Seifu’s electronic grounding draws from the Ethiopiyawi Electronic movement he helped define. It’s meditative yet propulsive, organic yet digitally alive. Neill’s Mutantrumpet threads through this landscape, with its tones resonating like ancient horns re-imagined for a new era. The effect can be felt with the African rhythmic pulse beneath the Western harmonic drift, and yet the music never settles neatly into either world.

The Moire Mix takes the same thematic DNA and refracts it through a more textural lens. Here, beats glitch and shimmer around deeper bass modulations, suggesting the interference patterns from which the mix takes its name. This version is less meditative and more exploratory – a field recording from some unseen interdimensional borderland between Addis Ababa and New York City.

What makes “Nefasphere” so affecting isn’t just its sound, but its story. This is music born from a relationship – teacher and student, mentor and mentee – that has evolved into genuine creative partnership. In Seifu’s own words, the collaboration marks “a rebirth… a reflection of the power of honest mentorship full of mutual respect and insight.” For Neill, it’s the realization of a long held artistic vision to create living, breathing music systems where structure and improvisation coexist in perfect balance.

Both versions of “Nefasphere” invite deep listening. They resist the quick satisfaction of streaming culture, instead unfolding slowly, like a landscape viewed from above. It’s music that rewards patience, music that is unmoored from trends and yet deeply of this moment.

For Seifu, this marks a luminous return following his acclaimed Zelalem EP (RVNG Intl, 2016). For Neill, it continues a lifelong exploration of evolution in his music, from minimalist composition to digital improvisation, from hardware to human breath.

But for both, “Nefasphere” is more than a collaboration. It is a shared meditation on sound as life force, a reminder that in the meeting of air and electricity, something sacred can still occur.

More About Ben Neill

Composer/performer Ben Neill is the inventor of the Mutantrumpet, a hybrid electro-acoustic instrument, and is recognized as a musical innovator who “uses a schizophrenic trumpet to create art music for the people” (Wired Magazine). Using interactive computer technologies, Neill generates unique musical and visual experiences that blur the lines between acoustic and electronic music, minimalism, and visual media. Neill has recorded thirteen albums on labels including Universal/Verve, Thirsty Ear, Astralwerks, Six Degrees, and his own Blue Math label distributed by AWAL/Sony. His first book, Diffusing Music, was released on Bloomsbury Press in 2024.

More About Mikael Seifu

Mikael Seifu is an Ethiopian electronic music producer committed to “Ethiopiyawi Electronic” – a coinage Seifu uses to describe the music he and his peers are producing in Ethiopia’s capital city of Addis-Ababa. Born and raised in Addis Ababa, he moved to the US and went on to study music production & the music industry at Ramapo College of New Jersey, a small school about 45 minutes outside of Manhattan. Here Seifu met a mentor in Ben Neill, the composer and music technologist who trained with La Monte Young. Seifu was inspired by Neill to take serious his calling in music. Mikael’s music does not westernize or electronicize extant Ethiopian music. Instead, Seifu uses Ethio-Jazz’s spirit of brewing estranged styles for his own musical tincturing. Seifu’s passion above all else is to create something befitting of its time, yet “eternally Ethiopian.” 

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