s o u n d i n d e x
Current projects
Artists: Ypsmael & Hans-Joachim Irmler
Title and format: TBC
Role: Audio co-recording & co-production
Partners: Faust Studio Scheer (DE) + TBC
Release date: TBA
Artists: Krausen Ypsmael
Title and format: TBC
Role: Audio co-recording & co-production
Partners: TBC
Release date: TBA
Artists: Simon Whetham & Ypsmael
Title: Digital to Analogue Corruption
Role: Co-authoring, audio co-recording & co-production
Format: TBA
Partners: KINDLING editions / Sonic Rubbish
Release date: TBA
Artist: Aelypsm
Title: YpSw (Guest: Simon Whetham)
Role: Audio co-recording & co-production
Format, partners & release date: TBA
Artists: Matt Atkins & Ypsmael
Title and format: TBC
Role: Audio recording & co-productionPartners: TBA
Release date: TBA
Artists: Karen Constance & Ypsmael
Title and format: TBC
Role: Audio recording & co-production
Partners: TBA
Release date: TBA
Artists: Peter Schubert / Auvikogue, NM / Ypsmael
Title and format: TBC
Role: Audio co-recording & co-production
Partners: TBC
Release date: TBC
Artists: rsn entities & Ypsmael
Title and format: TBC
Role: Audio recording & co-production
Partners: TBA
Release date: TBA
Artists: Dominik Irtenkauf & SmaelyP
Title and format: TBC
Role: Audio recording & production
Partners: TBA
Release date: TBA
Artists: Marie Vermont & Ypsmael
Title and format: TBC
Role: Audio recording & co-production
Partners: TBA
Release date: TBA
Artists: Brandstifter & Ypsmael
Title and format: TBC
Role: Audio recording & co-production
Partners: TBA
Release date: TBA
Artists: Jesse Kenas-Collins, Michael Rosenstein, Mickey O'Hara & Ypsmael
Title and format: TBC
Role: Audio recording & co-production
Partners: TBA
Release date: TBA
Artists: Youth Jumps The Barricade & Ypsmael
Title and format: TBC
Role: Audio recording & co-production
Partners: TBA
Release date: TBA
Past projects (selection)
Artists: Diurnal Burdens & Ypsmael
Title: Sode
Format: C42 Cassette + digital
Role: Audio co-recording & co-production
Label: Un Poco Fría (US)
Released: March 2026
Artists: Ypsmael & Diurnal Burdens
Title: Estavelle
Format: C42 cassette + digital
Role: Audio co-recording & co-production
Label: eë editions (AT)
Released: November 2025
Artists: Eloine + Ypsmael
Title: Of Delusions
Format: 12" Vinyl + digital
Role: Audio co-recording & co-production
Label: Chocolate Monk (UK)
Released: July 2025
Artists: Joel Penoan Collective (Elisabeth Haselberger, Andreas Usenbenz, Peter Schubert, Josef Häusel, NM)
Title: s/t
Format: C52 Cassette + digital
Role: Audio recording & co-production
Label: Klanggold (DE)
Released: June 2025
Artist: Smaelyp aka Ypsmael
Title: Peris
Format: Track for V.A. Cassette / CDr + digital
Role: Audio recording & production
Label: Longs Arm Artefacts (UK)
Released: April 2025
Artist: Ypsmael
Title: Torsion
Format: 7" Lathe Cut + digital
Role: Audio recording & production
Label: Spalt-Ung (DE)
Released: November 2024
Artist: Ypsmael
Title: Akystret
Format: 12" Vinyl, CDr + digital
Role: Audio recording & production
Label: Chocolate Monk (UK)
Released: September 2024
Artists: Krausen Ypsmael
Title: Mugress
Format: C40 cassette + digital
Role: Audio recording & production
Label: Steep Gloss (UK)
Released: June 2024
Artists: Dominik Irtenkauf & Smaely P
Title: Dein und mein Wald (English version)
Format: Digital
Role: Concept, sound design, audio recording & production
Partner: Radiophrenia festival, Centre for Contemporary Arts, Glasgow (UK)
Premiered: September 2023
Artists: Josephin Boettger & Felix Kubin + NM & Ypsmael
Title: Reservoir 23
Format: USB Stick (audiovisual), edition of 30
Role: Concept, audio recording & production, manufacturing
Partners: Reservoir.space (DE)
Released: August 2023
Artist: Smaely PTitle: (Are you taken) aback
Format: CDr + digital
Role: Audio recording & production
Label: Chocolate Monk (UK)
Released: May 2023
Artist: Ypsmael
Title: Box of Black
Role: Audio recording & production
Format: C40 cassette + digital
Label: Eh? / Public Eyesore (US)
Released: November 2021
Artists: Various
Title: Festival Reservoir 2019 (complilation)
Format: USB Stick (audio) + digital
Role: Sampler curation, audio recording & production
Partner: reservoir.space, global-forest.com (DE)
Released: July 2019
Artist: John Chantler
Title: Touch Radio 79 | Cambridge Unitarian, April 2012
Format: Digital
Role: Audio recording
Label: Touch Music (UK)
Released: May 2012
Label distro
New items of the following labels are usually ready to dispatch within two days after placing an order:
Chocolate Monk, Brighton/Hove (UK), releases on CDr and LP, stocked items include Evil Moisture, Cody Brant & Carl Kruger, Jason Kahn & Tim Olive, Neil Campbell & Rebecca Mahay, Family Underground, Forrest Friends, Nichola Scrutton & Ali Robertson, Psanck, Kinver Pond, T.Jervell & Co, Poulsen, Scariot, Meadow Argus, Insects Waiting, Yurii Samson, Johnny Scarr, Ashcircle, Ypsmael and more.
Eh? Cassettes, San Francisco/San Pablo (USA), CS releases by Tech Riders (Frans de Waard + Sindre Bjerga), Sindre Bjerga, Jaap Blonk, Terrie Ex & Jaap Blonk, Patrick Shiroshi / Arturo Ibarra, Johannes Bergmark / Guido Hübner, Jeff Surak, Charles Lareau, Abigail Smith, Kal Spelletich, Realtree, Erin Demastes, Ypsmael, John Collins McCormick, Eloine + Ypsmael | Coims, Ricardo Arias // Violeta García, Bong Watt, KBD, dustsceawung, and more.
Longs Arm Artefacts, Bristol/Frome (UK): CS releases and zines by McClure & Whyte, Grolf Self, and more.
Steep Gloss, Manchester/Wigan (UK): CS releases by Krausen Ypsmael and more (on request).
Soundindex, Bodensee/Meersburg (DE): USB releases and other formats involving Josephin Böttger & Felix Kubin + NM & Ypsmael.
Public Eyesore Records, San Francisco/San Pablo (USA): releases on CD and 7", stocked items include Tetuzi Akiyama & Anla Courtis, Many Arms & Toshimaru Nakamura, Ben Bennett / Jack Wright, Henry Kaiser / Alan Licht, Peter Aaron / Brian Chase Duo, Hélène Breschand & Elliott Sharp, Michael Gendreau, Pet The Tiger, Euphotic, Evan Lipson, Bryan Day & Dereck Higgins, John Krausbauer & David Maranha, Philip Gayle, Tungu, Stephen Finn / Bryan Eubanks, and more.
On request an updated list (stock per catalogue number, prices, links, etc.) can be provided, just send us an E-Mail.
Contributions to radio broadcasts (selection)
Work produced at Soundindex appears in:
Country: France / UK
Radio station: Camp Radio, Aulus les Bains
Date: 19 April 2026
Programme: Auricular Shelter
Presented by: Matt Atkins
Featured artist/group: Diurnal Burdens & Ypsmael
Release: Sode
Label/year: Un Poco Fría, 2026
Co-Producer: NM (Soundindex)
Country: UK
Radio station: Sheffield Live on 93.2 FM
Date: 29 December 2025
Programme: Two Foot Left
Presented by: Leigh
Featured artist/group: Eloine + Ypsmael
Release: Of Delusions
Label/year: Chocolate Monk, 2025
Producer: NM (Soundindex)
Country: Germany
Radio station: Radio Free.fm, Ulm
Date: 25 January 2026
Programme: Entartet
Presented by: Christian Clement, Florian Wieland
Featured artist/group: Joel Penoan Collective
Release: Joel Penoan Collective
Label/year: Klanggold, 2025
Co-Producer: NM (Soundindex)
Country: UK
Radio station: Resonance 104.4 FM, London
Date: 15 January 2026
Programme: The Wino Lodge Wireless Hour
Presented by: Dylan Nyoukis & Karen Constance
Featured artist/group: Ypsmael
Release: unreleased material
Label/year: unreleased material
Producer: NM (Soundindex)
Country: UK
Radio station: Sheffield Live on 93.2 FM
Date: 29 December 2025
Programme: Two Foot Left
Presented by: Leigh
Featured artist/group: Eloine + Ypsmael
Release: Of Delusions
Label/year: Chocolate Monk, 2025
Producer: NM (Soundindex)
Country: USA
Radio station: WCUW, Worcester, MA
Date: 21 October 2025
Programme: Music Under The Moon
Presented by: Mickey O'Hara
Featured artist/group: Eloine + Ypsmael
Release: Of Delusions
Label/year: Chocolate Monk, 2025
Producer: NM (Soundindex)
Country: Netherlands
Radio station: On Site - On Air webradio, BUG Radio, Cashmere Radio
Date: 24 May 2025
Programme: On Site - On Air webradio
Presented by: Magherita Brillada, Leonie Roessler
Featured artist/group: Dominik Irtenkauf & SmaelyP (NM)
Release: Your and my Forest_Dein und mein Meer
Label/year: Soundindex, 2025
Producer: NM (Soundindex)
Country: UK
Radio station: Glasgow 87.9FM
Date: 13 April 2025
Programme: Radiophrenia (Shorts 21)
Presented by: Radiophrenia
Featured artist/group: Dominik Irtenkauf & SmaelyP (NM)
Release: Dein und mein Meer
Label/year: Soundindex, 2025
Producer: NM (Soundindex)
Country: UK
Radio station: Eastern Alternative Radio
Date: 20 and 24 December 2024
Programme: Encyclopaedia Progtannica #6
Presented by: Terry Burrows
Featured artist/group: Ypsmael (NM)
Release: Akystret (2 tracks)
Label/year: Chocolate Monk / NM Soundindex, 2024
Producer: NM (Soundindex)
Country: Germany
Radio station: Colaboradio, Berlin 88.4 FM and Potsdam 90.7 FM
Date & Time: 24 July 2024, 01:00 (UTC+2)
Programme: A Duck in a Tree
Presented by: Zoviet France
Featured artist/group: Krausen Ypsmael
Release: Mugress
Label/year: Steep Gloss, 2024
Producer: NM (Soundindex)
Country: United Kingdom
Radio station: Resonance 104.4 FM, London, UK
Date & Time: 23 July 2024, 00:00 (UTC+1)
Programme: A Duck in a Tree
Presented by: Zoviet France
Featured artist/group: Krausen Ypsmael
Release: Mugress
Label/year: Steep Gloss, 2024
Producer: NM (Soundindex)
Country: Netherlands
Radio station: Vital Weekly Webcast
Date & Time: 23 July 2024 (online/on-demand)
Programme: Vital Weekly number 1445
Presented by: Frans de Waard / Vital Weekly
Featured artist/group: Krausen Ypsmael
Release: Mugress
Label/year: Steep Gloss, 2024
Producer: NM (Soundindex)
Country: Canada
Radio station: CJMP 90.1 FM, Powell River, British Columbia
Date & Time: 20 July 2024, 19:00 (UTC-7)
Programme: A Duck in a Tree
Presented by: Zoviet France
Featured artist/group: Krausen Ypsmael
Release: Mugress
Label/year: Steep Gloss, 2024
Producer: NM (Soundindex)
Country: United Kingdom
Radio station: Resonance 104.4 FM, London, UK
Date & Time: 20 July 2024, 19:00 (UTC+1)
Programme: A Duck in a Tree
Presented by: Zoviet France
Featured artist/group: Krausen Ypsmael
Release: Mugress
Label/year: Steep Gloss, 2024
Producer: NM (Soundindex)
Country: Australia
Radio station: 2BOB 104.7 FM, Taree/Manning Valley, NSW
Date & Time: 15 July 2024, 09:00 - 11:00 (AEST/Sydney time)
Programme: Lost and Found Sounds
Presented by: Hamish MacKenzie
Featured artist/group: Krausen Ypsmael
Release: Mugress
Label/year: Steep Gloss, 2024
Producer: NM (Soundindex)
Country: United Kingdom
Radio station: Resonance 104.4 FM, London, UK
Date & Time: 12 July 2024, 17:30 (UTC+1)
Programme: The Sound Projector Radio Show
Presented by: Ed Pinsent / The Sound Projector Music Magazine
Featured artist/group: Smaely P
Release: (are you taken) Aback
Label/year: Chocolate Monk, 2023
Producer: NM (Soundindex)
Country: USA
Radio station: WFMU, Jersey City, NJ, 91.1, 90.1, 91.9 FM
Date & Time: 26 February 2024, 00:00 - 03:00 (EDT)
Programme: Freaking Out with Kendraplex
Presented by: Kendraplex
Featured artist/group: Eloine + Ypsmael
Release: Split (w/ Coims)
Label/year: Eh?, 2023
Producer: Bryan Day & NM (Soundindex)
Work in connection with NM and Soundindex (under aliases such as Ypsmael, Smaely P, etc.) have appeared on:
2bob Radio, Taree, Australia
CJMP, Powell River, Canada
CK13 Radio, Novi Sad, Serbia
Colaboradio, Berlin, Germany
FSK Radio, Hamburg, Germany
KGPC Peralta Community Radio, Oakland, USA
NTS Radio, London, UK
Radiophrenia, Glasgow, UK
Radio Potsdam, Potsdam, Germany
Resonance FM, London, UK
Touch Radio, London, UK
V22 Summer Club Radio, London, UK
WCSB, Cleveland, USA
WCUW, Worcester, USA
WFMU, Jersey City, USA
WRCT, Pittsburgh, USA
Wüste Welle, Tuebingen, Germany
WZBC, Boston, USA
Working together
You might collaborate with NM Soundindex in areas such as:
Educational programmes for children and pre-college workshops
Teacher training
Audio recording
Mix engineering
Composition
Sound design
Dramaturgy
Editing and translation
Ideation
Artistic direction
Pre-production
Post-production
Media production, handling, manufacturing
Cross-media production
Radio play, feature
Foley for film, theatre, radio, audiovisual media
International touring and booking
Experimental Sound
@NM Soundindex
As a workshop and compact studio specialising in radio drama composition, atmospheric sound design and improvisation, NM Soundindex has been offering a space to develop ideas and turn them into audio productions, sound design and sound art in Meersburg on Lake Constance since 2015. A "very distinctive language" (The Sound Projector) of minimalist drone music and electroacoustic improvisation is the focus of the resident solo project Ypsmael, who has performed, exhibited and has been reviewed in relevant publications across Europe, the USA and the UK since 2010.
Also since 2010, Soundindex owner N. Müller has gained experience as a recordist, producing recordings full of character, some of which have resulted in releases with an international reach. Following completion of a master’s degree (Music Design, HFU, 2021), he worked as a researcher in musicological research and curriculum development (Master of Music in Composition) at the State Centre for Music Design and Performance at Trossingen University of Music.
Since moving to Meersburg’s old town, NM Soundindex has produced recordings and sound recordings with studio guests from the UK, Australia, France, Austria and Germany. Since 2022, radio drama produced at NM Soundindex under the project name SmaelyP (based on texts by the Berlin-based author Dominik Irtenkauf), have been broadcast in the context of radio art festivals in Santiago de Chile, The Hague, Glasgow and Cologne.
Thurston Moore's 350 Best Records of 2025
"These are definitely the best ones I heard. […] It’s amazing how much good music is being released outside the mainstream the last few years, experimental or otherwise […]"
– Thurston Moore (commenting on the list on which he included ‘Of Delusions’ by Eloine + Ypsmael, produced via NM Soundindex, released on the Chocolate Monk label)
Hörspielwiese Köln Award Ceremony 2022
"Opulent, raw, almost physical, a tour de force [...]. Sound composition that creates powerful images."
– Kiron Patka, Eva Solloch and Sebastian Hocke (award jury critique on 'Dein und mein Wald', text and concept by Dominik Irtenkauf; composition, sound design, production by SmaelyP via NM Soundindex)
Contact
N. Mueller / Soundindex.de
Street on request
DE-88709 Meersburg
++49 phone number on request
(Owner / responsible for website content excluding external links)
Reviews
"My short residency at Soundindex was extremely fruitful, as we were finally able to work together in person on our ongoing collaborative project. To have a few days to discuss and share our ideas, and then to have the studio space to make work, has been essential at this stage of the project. The space is private and comfortable, central to Meersburg old town. I can't wait to be back for another period of collaborative work."
– Simon Whetham, May 2024
"Above the rooftops of Meersburg, with an elevator almost to the top, the special atmosphere in the Soundindex Studio can be felt with the first step over the threshold. An experience of creative freedom, competent and empathic recording and mix engineering, coffee enjoyment at its best, peaceful atmosphere and concentration, interpersonal and musical experiences with host Norman Mueller and the 'band'."
– Elisabeth Haselberger, October 2024
"Wonderfully intensive recording weekend at Soundindex in Meersburg's old town with technically skilled support and creative artistic presence from NM himself. Will be glad to return..."
– Peter Schubert, October 2024
"The Soundindex Studio is not only an eye-catcher in terms of space but also very well staffed. Norman helped our ensemble to creatively let off steam with his technical, human and caffeinated competence and also personally made his sonic contribution. Anyone who needs a creative break between sessions will be treated to a wonderful old town backdrop, which is also just a stone's throw away from the lake. On the way there? Culinary delicacies as far as the eye can see."
– Andreas Usenbenz, October 2024
"Our spontaneously formed ensemble received outstanding support from Soundindex Studio, not only in audio engineering, recording and improvisation. From good conversation, beautiful landscapes, cozy rooms, pastries, coffee and drinks, nothing was missing on the magical weekend at the Lake Constance village. I will remember this for a long time..."
– Josef Haeusel, October 2024
"I have been working together with Norman since his tour of US West Coast in April 2018, when I arranged an event for a downtown San Francisco concert series at Canessa Gallery. I invited him to perform on the second of three consecutive nights he played in the city. He performed a compelling solo set spanning electroacoustic collage and free improvisation with live electronics, which was very well-received both among the audience as well as the staff. He turned out to be a convincing addition to our event’s line-up of Boston-based violinist Morgan Evans-Weiler, local duo Bodil and Larnie Fox, and a quartet of Theresa Wong, Kanoko Nishi-Smith, Tom Djll and Jacob Felix Heule. This was followed by various collaborative recordings over the years, including a grant from the German StiftungErlebnisKunst enabling a joint residency project, collaborative performance and hosting an invented instrument building workshop at Global Forest Kunstverein, St. Georgen, all of which he had organized. During 2020, he joined me for a full-time remote work placement at my record label, while finishing his postgraduate studies. This included long-distance collaboration on a music / sound art release on the label, including all steps from start to finish, as well as supporting and managing many of the label’s day-to-day routines, such as:
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Ideation, with using improvisation and a variety of techniques to collect material,
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Conceptualizing and developing musical passages, sonic structures and textures,
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Recording and arranging sounds,
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Mixing and mastering,
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Graphic and textual design,
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Procurement and production,
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EU press relations, scouting for new marketing and sales channels,
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Import and distribution planning and order processing,
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Networking, business development, PR and customer care.