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  • Streaming + Download

    Includes unlimited streaming via the free Bandcamp app, plus high-quality download in MP3, FLAC and more.
    Purchasable with gift card

      $10 USD  or more


  • Compact Disc (CD) + Digital Album

    Comes in a heavy-duty, high-quality matte finish cardboard digi pak, with artwork by Carol Genetti.

    Includes unlimited streaming of horizontal shift via the free Bandcamp app, plus high-quality download in MP3, FLAC and more.
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    edition of 100 

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phase shifts 09:40


horizontal shift, features the international trio, from Germany and U.S., of Birgit Ulher, Carol Genetti, and Eric Leonardson. The CD consists of a live performance recorded in 2018 at Elastic Arts in Chicago.

Having known each other since the late 1990s, it wasn’t until early 2018 that Ulher, Leonardson and Genetti were able to perform as a trio at Elastic Arts in Chicago. All three are seasoned performers in their own right — each bringing their distinct palettes in combination to create an improvised music with the microtonal and textural characteristics of sound. Ulher’s extended trumpet with its grainy clicks and multiphonics, Genetti’s abstract vocals with its wordless utterances and and Leonardson’s self-built “Springboard” with its bowed reverberations explore an atmosphere of expressive relationships of sound and silence; deep resonances, subtle microtones, splitting sounds, rough textures and shimmering multiphonics.

Birgit Ulher is a Hamburg-based musician who is focused on extending the sounding possibilities of the trumpet. She has developed various techniques and preparations to produce multiphonics and a grainy, textured sound, whether holding objects in front of the horn’s bell or feeding radio noise into trumpet mutes. Ulher performs solo and in various collaborative settings in festivals and venues around the world, partnering with dancers, visual artists, composers and other free improvisers. Recent projects also include video and sound installations.

Carol Genetti is a Chicago-based vocalist whose work encompasses sound and visual art media. Her practice is grounded in free improvisation, with a desire to unlock subconscious ideas and unintended intentions. Her vocal palette is primordial, existing in a space where “language” and “music” have yet to be formulated into familiar cultural patterns. She has performed with many improvising musicians, including Birgit Ulher, Eric Leonardson, Peter Maunu, Olivia Block and many others. Most recent recordings include a duet with Claire Rousay "Live at Elastic Arts" (Astral Spirits) and a collaborative release with visual artist Gwyneth Zeleny Anderson “Chyme" (Suppedaneum).

Eric Leonardson, a Chicago-based audio artist, serves as President of the Midwest Society for Acoustic Ecology, and President of the World Forum for Acoustic Ecology. He is Associate Professor Adjunct in the Department of Sound at The School of the Art Institute of Chicago (SAIC). As a performer, composer, and sound designer, Leonardson created sound with the Chicago based physical theater company Plasticene (1995-2012). Leonardson performs internationally with the Springboard, a self-built instrument made in 1994 and often presents on acoustic ecology to new audiences beyond art world contexts; engaging and connecting communities in the interrelated aspects of sound, listening, and environment.


released April 7, 2023

Birgit Ulher - trumpet, radio, speaker, objects
Carol Genetti - voice, objects
Eric Leonardson - springboard, objects, electronics

Recorded on February 8th, 2018, at Elastic Arts by Bill Harris.
Mixed by Bill Harris.
Mastered by Todd Carter.


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