Please answer the following question: What key details about ystein brun can be extracted from the following bio? Bio: ystein garnes brun -lrb- born 14 april 1975 -rrb- is the guitarist and founder of the norwegian black metal supergroup borknagar . he has been the only permanent member of the group and has written almost all of their songs . brun is noted for having many albums already written ahead of time .
A:
- instrument is guitar , vocals , keyboards , programming- years active is 1991 - present- origin is norway- genre is black metal folk metal progressive metal death metal- birth date is 14 april 1975- background is solo_singer- associated acts is borknagar cronian molested- occupation is musician , songwriter