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RISE: Sonic Sketches from Sourdough Cultures

by idiosyncratic beats of dejacusse

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Jude Casseday
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gallimaufry
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justintornow
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    Includes unlimited streaming via the free Bandcamp app, plus high-quality download in MP3, FLAC and more.

    This album will be expanded with additional tracks in the next year. I plan a longer soundscape that will be performed live with dancers and recorded for this album. I am open to sonifying more starters as well!
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1.
String of Yeasts 02:22
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2.
Waves of LAB 03:02
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3.
Ace Malorum and the AABs 03:34
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4.
Positive Co-Occurrence Pattern 02:35
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5.
S_522 02:13
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6.
S_299 02:26
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7.
S_131 01:51
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about

RISE:Sonic Sketches from Sourdough Cultures is an album of soundscapes based on the data and conclusions presented in the recently published (1/26/2021) paper "The diversity and function of sourdough starter microbiomes". (elifesciences.org/articles/61644 ) This study of 500 sourdough starters from four continents is the first intercontinental atlas of sourdough microbiomes. The listener will be introduced to some of the patterns and processes that characterize sourdough ecologies as identified in the paper. In addition, the ecologies of specific sourdough samples from The 500 will be sonically rendered. The sound sketches are based on data from the study, a sampling of sourdough literature and my own sonsense of the findings of the paper with input from the co-hort of scientists who worked on the study. For more specific information on my process for using data points to sound out informational patterns and relationships click here:

wp.me/p5yJTY-GA

The first three tracks introduce the voices of the four most prominent yeasts and four most prominent Lactic Acid Bacteria (LAB), and the singular voice of Acetic Acid Bacteria (AAB) found in The 500. These three soundscapes contain the patterns you will hear interacting in the specific starters and processes rendered in Tracks 4-7. Repeated listenings of tracks 1-3 will enable the listener to identify what yeasts, LAB and AAB are present in each starter/process and the nature of their interactions.

Track 4 renders a positive co-occurence pattern that was predominant in The 500.

Tracks 5-7 are 3 individual starters chosen from The 500 because they demonstrated strong AAB presence driving diversity and creating VOCs, and demonstrated the dominance of S Cereviseae.The starter soundscapes follow a template that begins with AAB burbling in with other lesser represented yeasts and LAB as interwoven long tones. Whenever Acetobactor Malorum is the dominant AAB, percussion will drive the interactions. Yeasts and LAB that present in higher amounts (>.4) within the starter will make solo statements based on their data point note assigments. When present in lower amounts, the data point notes will be long tones that slowly shift harmonics. The listener can discern patterns of metabolic interactions (think "feeding frenzy"), stable even friendly ecological interactions, and aroma "notes" (VOCs) sounding at the end of the soundscapes.

credits

released March 30, 2021

Ableton Live DAW, midi instruments, field recordings, data sonifications, various types of noise, audio filters and effects
Digital download only.

Album Art by Trudie Kiliru
Cover Graphics by Aamna Nasmeen

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idiosyncratic beats of dejacusse Durham, North Carolina

Jude Casseday aka dejacusse is a soundscape artist from Durham, North Carolina. Her work ranges from wild sonic experiments to structured compositions. Currently, Jude focuses her practice on attuning to all of the waveforms via The Field, her modular synth set up. Audiorigami: Meditations on The Fold was chosen for inclusion in Chapel Hill Library's TRACKS collection of albums by local artists. ... more

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