This article discusses our recent and ongoing research into the composition and analysis of real-time mixed music with Faust language. We will discuss our recent compositions, in particular, João Svidzinski's Les cris du sixième siècle for soprano and live- electronics (2016) and Alain Bonardi's Fil de Soi 1 and 2 (2016- 2018) for guitar and live-electronics, in perspective with our analysis, transcoding and recast of the real-time version of Jean Claude Risset's Inharmonique (1977). In addition, we will pre- sent the principle of matrix reinjection with two modules gener- ated in Faust, an Harmonizer-Delay and a Granulator. It allowed us to compose complex structures in real-time mixed composi- tion. We will first present this principle and then outline a valida- tion of this method by transcoding a PLF 4 routine from the In- harmonique original Music V code (with the assistance of its new transcoding) with the same Faust module as in our composi- tions. That is a creative approach, where the importance of code is at the heart of our compositional and analytical activity in the mixed music repertory.