In this paper, we describe a concatenative synthesis sys- tem which was first designed for a realistic synthesis of melodic phrases. It has since been augmented to become an experimental TTS (Text-to-Speech) synthesizer. To- day, it is able to realize hybrid synthesis involving speech segments and musical excerpts coming from any record- ing imported in its database. The system can also synthe- size sentences with different voices, sentences with mu- sical sounds, melodic phrases with speech segments and generate compositional material from specific intonation patterns using a prosodic pattern extractor.