6 Conclusion
We have presented the strategies and designs behind two contrasting “planetorium” experiences. Though differing in many respects, both aimed to create engaging experiences for groups of co-situated non-specialist listeners, attending to and directed towards shared listening experiences. We presented an audience-centered design strategy founded upon accessibility and involving three parts: audience research, perceptually-informed mappings, and creative interpretation. Audience research helped determine what data should be conveyed and how it might sound, perceptually-informed mappings facilitated the audiences’ auditory access to the data by privileging validated acoustic cues, and creative interpretation transformed the insights of prior research into a final acoustic form, contributing to listener engagement for the entirety of the listening experience.