Dimitri Psonis (Ahtens) began his musical studies in Athens. He specialized in musical analysis, harmony, counterpoint, byzantine music and musical greek instruments suchs as santur, oud, tzurás, tambura… Then he moved to Madrid where he obtained the top degree of percussion and musical pedagogy in the High Conservatoire of this city. He also studied in the Conservatoire of Amsterdam, and has colaborate with different ensembles.He founded the groups Krusta, Acroma and P’An-Ku; has accompanied numerous singers and instrumentalists like Elefthería Arvanitaki, Maria del Mar Bonet, Eliseo Parra and Javier Paxariño amongst others. In the last years, he has devoted himself to the study and the interpretation of the classic Ottoman music and to the popular music of Greece and Turkey. He also has made numerous CD recordings, and collaborated in some soundtrack films and theater works. In 1997 founded the ensemble Metamorphosis who has being performed in the most important Spanish Festivals. He collaborates with Early Music ensembles like Limoges Baroque orchestra, Speculum, Mudejar and Hespèrion XXI.