Threshold are a progressive metal sextet from the UK, formed in 1988. The band features founder member, guitarist and keyboard player, Karl Groom, plus Richard West - keyboards/ backing vocals, Johanne James - drums , Steve Anderson - bass/ backing vocals and Glynn Morgan - lead vocals/ rhythm guitar.
They released their debut album, "Wounded Land" in 1993, followed by: "Psychedelicatessen" (1994), "Extinct Instinct" (1997), "Clone" (1998), "Hypothetical" (2001), "Critical Mass" (2002), "Subsurface" (2004), "Dead Reckoning" (2007), "March of Progress" (2012), "For the Journey" (2014), "Legends of the Shires" (2017), plus 2022's: "Dividing Lines".