Swedish keyboardist who rose to fame for playing the instrument with the progressive metal band Opeth. He is also known for his work with the Berggren/Kerslake Band with whom he released the 2014 studio album The Sun Has Gone Hazy.
He was credited on Qoph's 1998 album Kalejdoskopiska Aktiviteter.
He joined Opeth in 2011 after they finished recording the album Heritage.
He is from Sweden.
Both he and Mikael Åkerfeldt performed with Opeth.