SPECTROSCOPY
PROTOTYPES I-III

THREE OPTICAL INSTRUMENTS

KONCERTKIRKEN, CøPENHAGEN, DK

2025

Design, Construction & SoftwareE | Severin Dornier

Performance | NEKO3

spectroscopy presents three instrument prototypes that transform physical oscillations into acoustic signals using custom photoelectric pickups and amplification circuits. Performers play the instruments conventionally through physical touch while simultaneously controlling motorized laser beams that scan across metal strings, metal tines, or spinning rotors. These lasers capture the oscillations and convert light information directly into sound. By mapping laser position, envelope, scanning speed, and rotor tunings to standard MIDI controllers, performers can precisely shape the sound, allowing each instrument to function as a standalone optical synthesizer.

The instruments were developed for and commissioned by NEKO3, whose musical input shaped the design greatly and who performed on them during the Neko3 Micro-Workshop Concert 2025 in Copenhagen.

Fotos & Video ©Niklas Ottander