Hans Müller

Müller is professional and highly focused on the technical requirements of the pipe organ. His characterization is primarily tied to his specialized work rather than an independent personal storyline.

He remains part of the concert-hall staff as the opening performance approaches and the police investigation intensifies.

Müller is a professional organ tuner with the specialized auditory and mechanical expertise required to maintain a large pipe organ.

His work requires understanding pitch, air pressure, pipes, stops, mechanical components, and the acoustic relationship between the instrument and the concert hall.

He has no supernatural abilities or established combat specialization.

Müller is introduced during preparations for the opening concert and works directly with the hall's organ.

His access to the instrument becomes relevant when Conan and the police investigate how the concert itself could be disrupted and why a particular note behaves unexpectedly.

Müller is not responsible for the attacks. The investigation instead traces the sabotage and larger plot to Fuwa.

Kazuki Doumoto is the organist whose instrument Müller is responsible for tuning.

Takumi Fuwa directs the concert hall in which Müller works.

Conan Edogawa examines the organ and its unusual behavior while investigating the case.

Shion Yamane, Rara Chigusa, and Reiko Akiba perform in the concert for which Müller prepares the instrument.