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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻

@differencetones.bsky.social
62 followers 48 following 119 posts

Artist, composer, sound designer, acoustician, researcher, gardener. Ecoacoustics, acoustic ecology. www.u-l-v.org

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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 03/10/2026
My wife seems to have purchased a very controlling bottle of wine…
A bottle of wine called “MIDI,” signalling that the wine is controlling.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 20/09/2026
Happy to report that I’ve exceeded my Dropbox limit by 85883.12%.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 13/09/2026
Finally read Robert MacFarlane’s “Is a river alive?”, beautiful, pensive disturbing, and calming. A lovely read for my commute and on weekend mornings. Although I must confess, it didn’t quite reach the (metaphorical) depths of Underland. Next up, Robin Wall Kimmerer’s “Gathering moss.” #booksky
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 12/09/2026
And a fine #caturday to you, madam!
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 08/09/2026
RIP Thore Hansen, og tegningene hans som definerte min barndoms fantasiverden.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 05/09/2026
At the closing hours of #caturday.
Laying in bed with a book and a cat, at the closing hours of caturday.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 03/09/2026
Bye bye, the fucking bye
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 31/08/2026
Pretty amazing grape haul from the pergola this year! #gardening #grapesky #gardensky
Picture of the terrace pergola where grows a bounty of grapes!
Four full containers of grapes from the pergola.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 23/08/2026
Interesting categories on Pinterest these days…
Screenshot of a Pinterest screen showing what is labelled “humanities aesthetic.”
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 04/08/2026
Keep up that vibe coding!
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 01/08/2026
Last day of the summer holiday… might as well go out with a bang!
Kitchen counter with ingredients for making frozen margaritas while cooking dinner!
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 29/07/2026
Met a gorgeous small tortoiseshell butterfly, Aglais urticae, outside my workshop today. The farm is filled with them these days! #nature #butterfly
Small tortoiseshell butterfly on a flower on the ground, spotted outside my workshop.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 25/07/2026
Woke up to #caturday like this.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 25/07/2026
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 23/07/2026
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 15/07/2026
Serious Summer Scorch
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 13/07/2026
Finally watched “Ready Player One”. Such a thoroughly enjoyable film with 100s of geeky film references. Probably should have watched this years ago… but hey! just watched it now!
Film poster for Ready Player One.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 09/07/2026
Spent 20 minutes on the phone with Mitch McConnell this morning and reports he is keeping very busy with all his shenanigans, that rascal.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 17/06/2026
Currently watching. First time since about 1995. Stunning photography. Unbelievable soundtrack.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 16/06/2026
Evening visitors in the #garden. The fawns were beyond cute, didn’t have the heart to stop them nibbling on the cherry tree…
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 15/06/2026
Cat with lavender and peony (a delayed #caturday).
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 04/06/2026
Savner tiden da folk hadde med seg bandopptaker for å gjøre piratopptak av teaterforestillinger!
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 31/05/2026
The baby came in for a spot of breakfast and promptly went outside when finished. #caturday
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 30/05/2026
Cantharis rustica on a peony leaf in the garden.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 25/05/2026
Exploring our forest with the kids on an overcast but warm day. #forest #nature #discovery
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 24/05/2026
The first deployment of the season of two @openacousticdevices.info #audiomoth this time with a #Cuddeback camera to also see a bit of the goings on. Indispensable help from the 10-year old, marvelling at the opportunity to hear and see everything going on in our forest.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 09/05/2026
Spent a few weeks sound designing and mixing for Tori Wrånes’ exhibition at the Nordic Pavilion part of the Venice Biennale. Always such a pleasure to work with my old friend! The exhibition is up until November and well worth a visit.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 08/05/2026
New drum machine just dropped!
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 24/04/2026
Planted a magnolia in the garden three years ago. Every year since I’ve hoped it would bloom for my daughter’s birthday. She’ll be 10 tomorrow and today it bloomed! #gardening #magnolia
Magnolia budWhite magnolia flower.White magnolia flower
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 11/04/2026
Packing a suitcase be like… cat. #caturday
A beautiful cat occupies an almost finished packed suitcase. Clearly demonstrating «you’re not going anywhere boyo».
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 07/04/2026
Three good things in life: #Plants, #books and #cats. And #tea, of course. So that’s four.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 15/03/2026
Sunday couch with #cat
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 15/03/2026
Et mareritt som plutselig er realiteten. Det absolutte knefallet, den ultimate underkastelse. Det totale marerittet som teknologiselskaper, evangelister og regjeringer ønsker seg. #KI #AI
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 14/02/2026
Celebrating #caturday in style!
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 24/01/2026
Libraries ❤️ At our local library you can borrow seeds for free and then return seeds you’ve harvested yourself in the fall.
A poster at the local library:
“The seed library. Here you can borrow seeds for free from the library and return seeds you’ve harvested yourself.”

Libraries ❤️
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 11/01/2026
Obscured by the snow cannon
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 23/12/2025
A walk in the wood with the kids saying hello to our friends. #funghi #slimemold #lichen
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 08/12/2025
Here are some nice mushrooms! Happy #MushroomMonday
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 07/12/2025
How your e-mail finds me #caturday
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 20/11/2025
The return of an old friend. Still sounds pretty awesome!
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 04/11/2025
Presenting “Unravelling/Desenradando” today with Ximena Alarcón, as part of #CMMR2025 at the black box at @ucl.ac.uk Marshgate.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 31/10/2025
This is Halloween, this is Halloween Pumpkins scream in the dead of night
3 carved pumpkins for Halloween. A cat, a Hufsa, and an evil traditional pumpkin. Scream! 
This is Halloween, this is Halloween
Pumpkins scream in the dead of night
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 25/10/2025
New neighbours just moved in.
Three young  roe deer hanging out on my neighbour’s lawn next to my window. New neighbours, new treats.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 24/10/2025
Pretty good mailday yesterday! Pretty good listeningday today! Courtesy of @frozenreeds.com
An angular photograph of a vinyl record of Mark Fell’s “Psychic resynthesis” and of a CD in beautiful packaging by SDEM. Halloween cat and pumpkin candles are looking on and approving.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 18/10/2025
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 05/10/2025
Got an M-Audio Trigger Finger in an original box the other day. The cat approves. #catsofbluesky
Cat sitting on a cardboard box, an original M-Audio Trigger Finger box, containing said Trigger Finger. The cat is beautiful.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 04/10/2025
Commute pre-storm.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 07/09/2025
What will they think of next?
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 05/09/2025
Not a bad haul, some oldies, some newbies, all goldies.
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Ulf A. S. Holbrook 🏳️‍🌈🇵🇸 🔻 @differencetones.bsky.social · 03/08/2025
Happiness is an active #Snowflake plugin! @torproject.bsky.social snowflake.torproject.org
Screenshot of snowflake plugin by Tor Project, which helps people circumvent censorship. Used by 20 people in the last 24 hours.
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