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  Testing the new camera flash with outdoor Opiliones and indoor Pholcinae :)

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  Was honored to be a part of a discussion with Seiji Morimoto and Andrejs Poikāns at the Ooolong radio's "Dual Mono" event in Berlin. You can now watch in full here: https://youtu.be/DRx9IEiwa7M

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  Got back to this site-specific piece from 2021 using rotating horns and parabolic dome designed by Juraj Gábor. Read more: https://jonasgru.sk/performances/Pre+Sphéru+(For+the+Sphere)

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  It is now 500 days since I started studying japanese. 500日間日本語を勉強しています

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  After almost two years of work, last Friday we have opened a new exhibition with Matej Gavula in tranzit.sk gallery in Bratislava. You can read an associated text about the history and some of my thoughts on oil extraction in western Slovakia here: https://jonasgru.sk/.../Man+Has+Emerged+Triumphant+(essay) The exhibition will be open till 27th of March. Photos by Adam Šakový

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  I talked (in Slovak) about our latest exhibition "The Man Has Emerged Triumphant" and accompanied field recordings at Rádio Devín: https://devin.stvr.sk/clanky/kulturny-dennik/433419/projekt-mateja-gavulu-a-jonasa-grusku-s-nazvom-clovek-zvitazil-arena-jana-medlena

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  TIME: 2025-08-13T12:49:22 SUBJECT: SEAGULLS EQUIPMENT: LOM MIKROUSI WITH ULTRASONIC HORNS LOCATION: DAUGAVGRIVA BREAKWATER, LV COORDINATES: 57.062231, 24.016706

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  2026-04-13 Lecture about ultrasound at Soundscopia, Vienna, Austria 2026-04-18 Lecture about fungi at LUFT festival, Ostrava, Czech Republic 2026-05-16 Lectures at SKWAT, Tokyo, Japan 2026-05-19 Lecture about my practice at Tama university, Tokyo, Japan 2026-05-23 Lectures at National Taiwan University of Arts, Taipei, Taiwan

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  SUBJECT: ROE DEER BARK TIME: 2026-04-04T04:26:24 LOCATION: CERGOV, SK COORDINATES: 49.2124267N, 21.1153514E EQUIPMENT: TASCAM FR-AV2 + LEWITT LCT540S

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  As I started doing more drop-rig #FieldRecording this year for a long-term project, I wanted to design a no-compromise system that would last me a lifetime. I hike with this case through streams, mud, rain and snow, and it gets thrown around — so the gear inside needs to survive all of that. This is overkill for most use cases, but I'd rather over-engineer once than lose a recording I traveled/hiked many hours for to a failing equipment. https://jonasgru.sk/writing/Mid-sized+drop+rig+fo...

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  7 years ago I was honored to be a part of this documentary about field recording: https://youtu.be/esfUwg1-xrI