Per Wiberg

Wiberg was formerly in the bands Death Organ (1993–1997) as an organist, Boom Club (1994) as a vocalist, and Opeth (2003–2011) as keyboardist and backing vocalist.
Before joining Spiritual Beggars, Wiberg was a member of Borlänge-based band Death Organ. He has fronted the band Boom Club, of the same area.
Wiberg toured with Opeth from the 2003 Deliverance/Damnation tour onward, and joined Opeth officially in 2005. Wiberg provided backing vocals for Opeth in addition to keyboard. It was announced on 6 April 2011 that Wiberg was leaving Opeth as part of a mutual decision between him and the other band members.
Wiberg played the keyboard in the intro to "Enemy Within" by melodic death metal band Arch Enemy. He played piano on Swedish progressive rock band Anekdoten's 1993 release Vemod.
In 2007, Wiberg collaborated on a project called King Hobo with Clutch drummer Jean-Paul Gaster and Kamchatka guitarist Thomas Andersson.
Since 2012, he has been a live musician for Swedish doom metal band Candlemass as well as joining Swedish band Switchblade on selected dates as a keyboard player. He also played bass when needed.
Wiberg has collaborated on all Big Scenic Nowhere releases since 2019, including two studio albums and two EPs.