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1992 – 1996
Conservatory in Bratislava, percussion
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1997
appearance at the Musica Sacra festival in Bratislava, participating in the premiere of Jazz Meditations for alto saxophone, double bass and percussion by Shawn Loescher, American saxophonist living in Slovakia (Shawn Loescher – alto saxophone, Juraj Kalász – double bass, Marián Ševčík – percussion)
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1996 – 1997
member of Shawn Loescher’s Trio, of the bands Láďa Kerndl Jazz Friends, Elie Quintet (Juraj Kalász, Marián Ševčík, Miloš Suchomel, Ľuboš Šrámek, Oskar Török) etc.
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since 1999
member of Juraj Bartoš’s be-bop band Hot House (Juraj Bartoš, Juraj Griglák, Radovan Tariška, Ondrej Krajňák, Marián Ševčík), member of Peter Cardarelli Quartet, Ondrej Krajňák Trio etc., appearance at festivals in Austria, Germany, Netherlands, England and Scotland, cooperation: Greg Burg (USA), Rick Šiling (USA), Peter Cardarelli (USA), Oliver Kent (AT), Anna Lovergnac (IT), Marek Balata (PL)
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since 2003
member of Milo Suchomel Quartet (Milo Suchomel – tenor saxophone, Klaudius Kováč – piano, Štefan Bartuš – double bass, Marián Ševčík – percussion)
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2000, 2001, 2003
appearance at the Bratislava Jazz Days (2000 with Peter Cardarelli; 2001 with Hot House; 2003 with Milo Suchomel Quartet)