Career
He founded the symphonic metal band Apocalypse with Mark Jansen in 1995, which later changed its name to After Forever. He played guitar and did the grunting parts in the band. He managed the band and was the main writer of After Forever"s music
After recording all guitars for the album Rise of the Warrior by Anna Phoebe, he has undertaken a project called HDK, which is signed to Season of Mist.
HDK"s debut album, System Overload, was released on February 23, 2009. He is also the additional lead guitarist on Kiske/Somerville, an album by the German singer, keyboard player and guitarist Michael Kiske (ex-Helloween) and the American singer-songwriter and vocal coach Amanda Somerville.
In 2010 he co-wrote the album Scheepers, a solo album of Primal Fear"s lead vocalist Ralf Scheepers. On August 19, 2013, it was revealed that Gommans was engaged to be married to Amanda Somerville, and the pair were married in July 2014.