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10.12.2026 20h Stockwerk Graz.

The styrian Improvisers Orchestra with special guest Ewald Oberleitner performing at Stockwerk Graz. Details coming up…

17.11.2026 19h - ANNENViERTLER Büro zur Rettung der Welt.

Display in Progress 1:
special guest Nick Acorne.

This is a five-part concert series. Seppo Gründler and Robert Lepenik perform improvisations and invite guests to join them for a public session. You can experience it while passing by, by stopping to look into the shop window, or by coming inside—for a short while or longer; in any case, everyone is always warmly welcome. Just as it should be when it comes to saving the world.

6.-8.11.2026 St.Petri Dom and Schwankhalle Bremen

The 23rd Biennale for Contemporary Music focuses on the music of the immediate moment: “!Instant Music!” In both its expression and its outcome, improvisation serves as a snapshot of a specific artistic and social situation. The very presence of the musicians creates a “now” that is unrepeatable, yet profoundly meaningful.

Me playing on the 6th at St.Petri Dom with:
Reika Hattori Augmented Toy Piano.
Felix Martl Bassclarinet.
Mahtab Miandehi Violine.

The Styrian Improvisers Orchestra with a focus on electronic instruments and spatial sound reproduction, STIO presents three conducted pieces by Katharina Klement & Ilmārs Šterns, Seppo Gründler, and Josef Klammer. At the center of the IEM-Cube, the audience experiences this multi-voiced ensemble in its full spatial dimension—ranging from dense orchestral textures to soloistic moments within the framework of conducted improvisation.

image: STIO at Cube © Josef Klammer, with the kind assistance of AI

Ungeheuer was shown at Luna Nights in Leeuwarden from 30.1. to 15.2.2026. The work itself is inspired by Goya’s drawing “The Sleep of Reason Produces Monsters,” from his series of aquatint etchings, Los Caprichos. Visuals by Hartung | Trenz. Sound by Seppo Gründler.
Image by Hartung | Trenz

The Zauberwald Lenzerheide took place from December 12 to December 31, 2025, in the Eichhörnliwald (Squirrel Forest) in Lenzerheide. Due to extremely high demand, the winter festival—featuring light art, music, and culinary offerings—was extended in 2025 to include an additional evening on New Year’s Eve (December 31).

4–7 December 2025 Christmas City Turku
Path of Light Market Square Turku, Finnland

Lotus Pods by David Ram
Lotus pods is an interactive light art installation consisting of three rotating, capsule-shaped light sculptures.
Sound by Seppo Gründler, inteactive media procucer Georg Kettele

Thursday 20. November 2025
Kulturkotter Graz

Gründler and Lepenik singing Adorno and other philosophers
or two solo entertainers play simultaneously and together.

image by Gemini

24-27 October 2025 Graz Austria
Lotuspods at Klanglicht Graz

Lotus pods is an interactive light art installation consisting of three rotating, capsule-shaped light sculptures by.
David Ram

Interactive Media Design by Georg Kettele
Interactive Souddesign by me.
image ©-Luke_Goodlife-for-Klanglicht 2025

Thursday 16th of October 2025 20:00
Stockwerkjazz, Jakominiplatz 18, Graz

STIO features Dušica Cajlan (piano) and Georg Wissel(alto sax, clarinet)
plus a specials guest - Clementine Fuchs conducting „Es ist ein Lächeln in den Untergängen”.
image by Senja Vild

Three-day conference by ima in cooperation with solektiv St. Pölten
In scope of whitebox ai September 18 to 20, 2025
Mobiles Stadtlabor, Spratzener Kirchenweg 81 - 83, Sonnenpark St. Pölten

Klammer&Gründler Duo performs with guests maybe
at hotoelpupik
sometimes between 8th and 10th of august 2025
Schrattenbergstraße 32, 8811 Scheifling, Austria

18h30 26th of July 25 - Hyblerpark Kultursommer Wien:
the Klammer&Gründler Duo meets Alfred Lang

Alfred Lang: Trumpet
Josef Klammer: drums, live electronics
Seppo Gründler: guitar, electronics
image by Josef Klammer

Tuesday 24th of June 2025 20:30
Stockwerkjazz, Jakominiplatz 18, Graz

STIO presents the German cellist Fried Dähn as a soloist, orchestral musician and conductor.

Conductions and pieces by Fried Dähn, Richie Herbst and others.
image by Katharina Jung