Mark Jansen (Epica)

Isaak Delahaye (Epica)

Eric Hazebroek (Stream of Poison)

Kevin Storm (Cardamon)

Koen Romeijn (Cardamon)

Frederic De Cecco (Breach The Void, Further Dimension)

Tomek Lipiński (Tilt)

Zbigniew Krebs (Maryla Rodowicz, Chemia)

Artur Gierczak (Reni Jusis, Łukasz Zagrobelny)