Information: - Frictional Games AB is an independent video game company located in Helsingborg, Sweden. The developer comprises a small core team and is led by Thomas Grip and Jens Nilsson. Certain key roles such as Music are performed by external staff like Mikko Tarmia. Linux and Mac OS X ports are handled by Edward Rudd. - In mathematics, a theorem is a statement that has been proved on the basis of previously established statements, such as other theoremsand generally accepted statements, such as axioms. A theorem is a logical consequence of the axioms. The proof of a mathematical theorem is a logical argument for the theorem statement given in accord with the rules of a deductive system. The proof of a theorem is often interpreted as justification of the truth of the theorem statement. In light of the requirement that theorems be proved, the concept of a theorem is fundamentally "deductive", in contrast to the notion of a scientific law, which is "experimental". - Research comprises "creative work undertaken on a systematic basis in order to increase the stock of knowledge, including knowledge of humans, culture and society, and the use of this stock of knowledge to devise new applications." It is used to establish or confirm facts, reaffirm the results of previous work, solve new or existing problems, support theorems, or develop new theories. A research project may also be an expansion on past work in the field. Research projects can be used to develop further knowledge on a topic, or in the example of a school research project, they can be used to further a student's research prowess to prepare them for future jobs or reports. To test the validity of instruments, procedures, or experiments, research may replicate elements of prior projects or the project as a whole. The primary purposes of basic research (as opposed to applied research) are documentation, discovery, interpretation, or the research and development (R&D) of methods and systems for the advancement of human knowledge. Approaches to research depend on epistemologies, which vary considerably both within and between humanities and sciences. There are several forms of research: scientific, humanities, artistic, economic, social, business, marketing, practitioner research, life, technological,etc. - Penumbra : Black Plague is the second installment of the Penumbra series of episodic computer games developed by Frictional Games . The story continues from the previous episode , Penumbra : Overture , showing the protagonist Philip moving away from the abandoned mine setting of the original to explore an underground research base . Black Plague was released on February 12 , 2008 to generally favourable reviews from critics . Although originally intended to conclude the series , a further expansion called Penumbra : Requiem was released later that year . What is the relationship between 'penumbra: black plague' and 'mikko tarmia'?
The answer to this question is:
composer