This introduction situates Prompt’s special issue on musical collaborations. With “Inversions: Three Approaches to Collaborating Through Theatrical Models,” I position “green” theatre practices within broader conversations about theatrical design, pedagogy, and collaboration. Traditionally, scenic models serve as visual proxies for a playwright’s world, stabilizing production concepts and guiding rehearsal processes. This issue upends that convention by asking music theatre writers to create original compositions in response to scenic models, reversing the expected flow of inspiration from script to stage. The results illuminate how models function not only as technical tools but also as dramaturgical provocations, interpretive texts, and ecological artifacts. Drawing on Peter Brook, Elinor Fuchs, Stuart Hall, and ecocritical performance theory, the essay outlines three methodological approaches for engaging models with students: as dramaturgical inventions that generate new worlds, as negotiated readings shaped by interpretive context, and as ecological performances that foreground sustainability and reuse. By reframing the theatrical model as a site of invention rather than translation, the issue invites educators and artists to reconsider collaboration, authorship, and the liberatory potential of theatrical space.