Nikoghayos Tigranyan

Nikoghayos Tigranian (Armenian: Նիկողայոս Թադեւոսի Տիգրանյան; 31 August 1856 in Alexandropol – 17 February 1951 in Yerevan) was an Armenian composer, pianist, musicologist, and sociocultural activist. He introduced the Braille System to Armenia.