Biography
There are two acts called Limen:
1. Nariman Aliakbar, aka "Limen" is a pianist and electronic musician, based in Tehran. He has been active in electronic music mostly performing in private and underground gigs. The word "limen" refers to the boundary of perception, a threshold below which something is not perceived or is not distinguished from another;
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2. Limen is a melodic black metal band from Finland fronted by Helquin who does all the instruments on Limen's one self titled demo.
Biography text from Last.fm, available under CC BY-SA.