There are at least 2 bands with the name "Gjöll":

1. Gjöll are two individuals, Jóhann Eiriksson (member of the musical projects 'Reptilicus' and 'Product 8') and Sigurður Harðarson (member of grindcore band Forgarður Helvitis). Gjöll's initial release should be seen as a conceptual work. The lyrics are in icelandic and tells a story of man's evolving anger. The story's musical visualization will haunt you right from the first minute. Each of the parts stand for themselves, showing the main person's mental state from depressed to aggressive and finally released. An astounding sound variety within its isolated shell, starting with pulsing sub-basses and synth layers over a driving rhythmic sequence to noise drones, ambience with high frequency sonic attacks and finally ending with a silent, melodic phrase. The vocals carrying the lyrics range from clean and quiet up to heavily distorted and filled with hatred. There aren't many other recordings left to be played after this aural struggle. To dare a comparison, it would have to be the darker ambient / industrial drone realm.

2. Gjöll - German Black Metal Band. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.