The aim of the SONAO project is to establish new methods basedon sonification of expressive movements for achieving a robust interaction between users and humanoid robots. We want to achievethis by combining competences of the research team members inthe fields of social robotics, sound and music computing, affective computing, and body motion analysis. We want to engineersound models for implementing effective mappings between stylized body movements and sound parameters that will enable anagent to express high-level body motion qualities through sound.These mappings are paramount for supporting feedback to andunderstanding robot body motion. The project will result in thedevelopment of new theories, guidelines, models, and tools forthe sonic representation of high-level body motion qualities in interactive applications. This work is part of the growing researchfield known as data sonification, in which we combine methodsand knowledge from the fields of interactive sonification, embodied cognition, multisensory perception, non-verbal and gesturalcommunication in robots.