Forge) – "Bleed For Me" (2014) Burning Heart single (Eshtadur) – "Burning Heart" (2014) Our Dying Sun (The Francesco Artusato Project) – "Omega" (2014) Destroy the Light (Thorns of Sin) – "The Truth Awakening" (2015) Journey to the Stars (Widek) - "Canis Majoris" (2015) Ghost Ship Octavius (Ghost Ship Octavius) – "Sea Storm" (2015) The Human Affliction (Paul Wardingham) – "Burning Chrome" (2015) Plagued (Works of Flesh) – "Hex of Departure" (2015) Music Kit for Counter-Strike: Global Offensive (Skog) – "II - headshot" (2015) Clockwork Sky (Terminal Function) – "Inside The Quadrant" (2015) - choir vocals Trinidad Scorpion Hallucinations (Jeff Hughell) – "The Other Side" (2016) Fenris (Khasm) – "Nightwatch" (2016) The Fire Within (Eternity's End) – several songs (2016) - backing vocals, synth solo, additional keyboards Bare Trap single (Danny Tunker) – "Bare Trap" (2016) - keyboards The Crypts of Sleep (Hannes Grossmann) - "The Crypts of Sleep" (2016) Nautilus EP (The Silence) - "Spectre" (2016) Origins (Mutiny Within) - "Silent Weapons" (2017) Dark Passenger single (Disdained) – "Dark Passenger" (2017) - keyboards, backing vocals In a World of Fear (Scale the Summit) – "Goddess Gate" (2017) Vengeance and The Misery single (Unveil the Strength) – "Vengeance and The Misery" (2017) All of Creation (Al Joseph) – "Ocean Levels" (2017) En Välsignad Man (Simon Ådahl) – "Mera Rock'n'Roll" (2017) Observables (ANYWHEREDOOR) – "TechTrip" (2021) – guitars, keyboards, vocals'' References External links Scar Symmetry Official Facebook Page Per Nilsson Official Facebook Page The Absence Official Facebook Page Kaipa Official Website Swedish rock guitarists Living people Year of birth missing (living people) Seven-string guitarists Eight-string guitarists Mensans Kaipa members Scar Symmetry members