Hearts of Black Science is a Swedish musical duo from Gothenburg, known for creating “dark, brooding synthpop mixed with shoegaze, goth and new wave pop”. The genre of their music has also been referred to as post-rock and electronica. The band says their focus is on “melodies” and “dark lyrics”; their name comes from the idea of alchemy creating gold from available materials, or in their case, music from diverse styles. History.
https://en.wikipedia.org/wiki/Hearts_of_Black_Science