2013 – 20th Festival

Thomas Zwijsen (Netherlands),Gahuer Carrasco (Brazil) «Guitarte» ensemble      Nikos Chatzieleftheriou,      Christos Faklaris,      Fragoulis Karagiannopoulos,      Maria Papamichael,     Anna Sartzidou Vaggelis Germanos Michalis SourvinosVarvara GyraLetta Vasileiou

2014 – 21st Festival

“The Brooklyn Brothers” (Netherlands) Peter Damm  –  Remco Blaauw “Fuego Guitar Trio” Michalis Sourvinos, Angelos Botsis,  Roland Hoffmann (Germany) Sebastien Vachez (France) – Maria Fragkiadaki Kostas Vlachopoulos –   Herman Mayr (Argentina),Letta Vasileiou, Kostas Maragos,Nikos Pachakis,Christodoulos Benetatos

2015 – 22nd Festival

“SEMPRE VIVA”Guitar Orchestra of VolosDirection Evangelia Gousia. Ivan Petricevic (Serbia) Florian Palier (Austria) Nefeli & Romanos Fasoulis“Voice & Guitar” (Greece) Letta Vasileiou (Greece) Dionysis Katinakis (Greece) Angelos Nikolopoulos (Greece)

2016 – 23rd Festival

Invited Artists Julia Malischnig (Austria)Sebastien Vachez (France) – Maria FragkiadakiNathalie and Pierre Goliot (France)Daniel Marx (Germany) “Hesperia” Guitar Orchestra –  Direction: Fragoulis Karagianopoulos Hrach Altunyan (Armenia)Dionysis KatinakisLetta VasileiouAngelos Nikolopoulos

2017 – 24th Festival

Invited Artists El Duo De DosKostas Vlachopoulos (chromatic harmonica)Lambros Karkanopoulos (guitar) Piratas de la guitarra –Direction Letta VasileiouMembers:Michalis Pantazis,  Elianna Politi,  Nina Giovazolia, Eleni Anagnostopoulou,Iasonas Nikolaou, Despina Mereou,  Artemis Tsagkaraki,Dimitris Politis, Ileana Politi,  Costas Manolkidis Fabio Barbagallo (Italy)Vassilis KanarasVirginia AmariotakiAngelos EfstratiouVassilis KanellopoulosMiltiadis KaraiskosDespina PlytaAngelos Nikolopoulos

2018 – 25th Festival

Invited Artists Wieczorek Trio (Poland) Katarína Wieczoreková Franciszek Wieczorek Radosław Wieczorek Soren Boedker Madsen (Denmark) Hesperia Guitar Ensemble Dir. Frangoulis Karagiannopoulos Konstantinos Kirolytis – Dionyssia Tronti Letta Vasileiou Kostas Manolkidis Diamantis Diamantidis Angelos Nikolopoulos