"Zumthor, whose father is the architect Peter Zumthor , broke a violin training in the kindergarten age. Through his father he was early familiar with Jazzmusik ; Only through hip-hop did he return to active music making and learned to play drums, largely as an autodidact . At the age of 19 he played in the (last) trio of Werner Lüdi . With his projects, he is present on national and international stages; For example in the duo with the pianist Vera Kappeler , as a soloist, or with the drummer theater "Die Hintertür" with Fritz Hauser and Rob Kloet . With Dominik Blum at the Hammondorgel he plays in the duo Azeotrope. Concert tours took him to over a dozen countries. Zumthor also works at the interfaces of music and visual art. He began to make the preparations for the church bells, which were altered in sound, for both music and art festivals.

Zumthor initiated numerous projects and formations. He was involved in world premieres of New Music , gave solo concerts, played theatermusics and composed architectural music and composed music. He worked with the composers Felix Profos and David Dramm as well as with the musicians Christian Weber , Anna Trauffer, Fritz Hauser, Achim Escher and Marek Otwinowski, Jürg Kienberger, Julian Sartorius and with the Ukrainian writer Yuri Andruchovych ( Werewolf Sutra ). With Samuel Streiff, he worked on the battles (2014).

In 2009, he received a work grant from the Canton of Graubünden to prepare his solo program. In 2015, the Duo Kappeler / Zumthor received the recognition prize of the city of Chur."