Dimitrios was born in Thessaloniki, Greece. He took his first steps into the world of music by playing with several local bands. In 2004 he began his music studies at the Toumba Music School under the guidance of Theodoros Evangelinos. Three years later he continued his studies at the Filippos Nakas Conservatory in Thessaloniki, studying with Nikos Fountoukidis and later with Christos Germenoglou.
In 2008, Dimitrios moved to the Netherlands to pursue his higher education and develop his musical skills through more musical challenges. In 2012 he completed his Bachelor studies at the Conservatory in Maastricht, Netherlands, studying with Arnoud Gerritse and Ron van Stratum. In 2014 he completed his Master studies next to Stephane Galland and Dre Pallemaerts.
Since 2008 Dimitrios Kosmidis has collaborated and shared the stage with several well respected artists such as Amik Guerra, Gerald Canon, Yuri Honing, Loren Stilman, Ewout Pierreux, Frank Giebels and many more. In addition Dimitrios Kosmidis has participated in several festivals in Holland, Germany, Belgium, Italy and Greece and he is performing on a regular basis in Limburg.
Nowadays, Dimitrios lives in Lelystad (the Netherlands) and continues to play concerts, while coaching the next generation of musicians. Dimitrios is known for his facilitative style, pushing his students to learn how to find their sound, perfect their techniques and learn self-sufficiently at home. Dimitrios teaches privately, as well as at the British School of Den Haag,