Hotel Pro Forma is an international laboratory of visual music performance and installations. Perception, perspective and themes from the world are blended into a conceptual, visual and musical art form. Each work is developed through an almost natural-science approach to study and research, and subject matter is often taken from this world-view. The artistic process is exploratory and transdisciplinary.
The structure of the work is strongly anchored in music, visual arts and architecture and does not follow traditional theatrical structures. Instead the work presents visual and musical universes that investigate universal subjects such as evolution, world cultures, perspective and gravity. The audience is presented with themes and subjects in new contexts, and experimental technology in audio-visuals, light and sound is often developed for each work, so that the subject matter is seen, heard and experienced anew.
Kirsten Dehlholm (b. 5 April 1945) passed away aged 79 in July 2024. She was Hotel Pro Forma’s artistic director since its founding in 1985. Together with Hotel Pro Forma, she produced more than 60 works which were shown in over 30 countries ranging from exhibitions and performances to opera productions.

— Quaternaire represents Hotel Pro Forma in Europe (apart from Scandinavia and the Baltic States).

