抄録
This study employed a practice-based research approach to examine how participatory frameworks in electroacoustic music
(EAM) can be reconfigured to involve non-experts in sustainable ways. It focuses on the Denshi Onkyo People Project
(DOPP), a long-running participatory EAM project that combines workshops, collaborative creation of acousmatic works
(fixed-media works presented through loudspeakers without visible performers), and concerts and installations with multichannel
speakers. We compared two DOPP workshops held at the Goethe-Institut Tokyo in 2023 and 2025. Drawing on
timetables, staff structures, internal documents, and participant comments, we analysed a redesign in which the compressed
half-day format — previously delivered as two separate sessions for different participant groups — was consolidated into a
single full-day workshop with more time for interaction, reflection, and consultation about subsequent collaborative production.
The redesigned workshop functioned more clearly as a ‘connection point’ between one-off participation and long-term
involvement, and the participants reported acquiring editing skills and new listening perspectives more often. Simultaneously,
creative authority remained concentrated among experts and issues surrounding rights, consent, economic circulation, and
archiving became more salient. Building on an analytical framework that considers participation layers, decision-making,
documentation, and institutional structures, we argue that participatory EAM projects should be understood as ecosystems
of practice rather than isolated works or events. Designing such ecosystems, especially in relation to the role of experts as
meta-designers and the treatment of participants as co-creators and co-owners, requires an explicit institutional framework.
