Stam1na (pronounced [ˈstɑminɑ]) is a Finnish heavy metal musical group native of Lemi, South Karelia. Their music is arguably best described as thrash metal with some progressive metal, death, alternative and punk influences, and is sung in the Finnish language. The band mainly uses seven-string guitars on all albums except the first one where they used six-strings, and a few songs were composed for eight string guitar on the eighth album Taival.

Source: Wikipedia (https://en.wikipedia.org/wiki/Stam1na)