SOUL is a new audio Domain Specific Language and a run- time platform developed by ROLI, which aims to modernise and optimise the way high-performance and low-latency audio code is written and executed. FAUST is a functional Domain Specific Language specifically designed for real-time signal processing and synthesis. Both approaches share common ideas: sample level DSP computation, fixed memory and CPU footprints, dynamic JIT compilation, CPU efficiency, multi-targets deployment (native and embedded platforms, up to the Web). This paper presents a work in progress done around the idea of hybridizing FAUST with this new language.