[PAR] [TLE] Johannes Bergion [SEP] Johannes Bergion is a Swedish cellist, songwriter and backing vocalist, most known for being one of the founding members of avant-garde metal band Diablo Swing Orchestra.  He also played cello in various Hellsongs albums, and in the In Flames album "Sounds of a Playground Fading". [PAR] [TLE] Diablo Swing Orchestra [SEP] Diablo Swing Orchestra is a Swedish avant-garde metal band formed in 2003.  They have released three albums: "The Butcher's Ballroom" (2006), "Sing Along Songs for the Damned & Delirious" (2009), and "Pandora's Piñata" (2012).
[PAR] [TLE] Johannes Bergion [ SEP ] Johannes Bergion is a Swedish cellist , songwriter and backing vocalist , most known for being one of the founding members of avant - garde metal band Diablo Swing Orchestra . He also played cello in various Hellsongs albums , and in the In Flames album " Sounds of a Playground Fading " . [PAR] [TLE] Diablo Swing Orchestra [ SEP ] Diablo Swing Orchestra is a Swedish avant - garde metal band formed in 2003 . They have released three albums : " The Butcher 's Ballroom " ( 2006 ) , " Sing Along Songs for the Damned & Delirious " ( 2009 ) , and " Pandora 's Piñata " ( 2012 ) .
In which year was this Swedish avant-garde metal band formed, whose founding members include Johannes Bergion?
In which year was this Swedish avant - garde metal band formed , whose founding members include Johannes Bergion ?
2003
2003