Complex sentence: Three students of the Yerevan State Politechnic Institute were singing about pain and sorrow, their lyrics (written by Mushegh Ishkhan, Razmik Davoyan and Meschian) touched philosophical questions of life's meaning, pain and mercy, joy and pride.
Split into simpler sentences: Three students of the Yerevan State Politechnic Institute were singing about pain and sorrow, their lyrics (written by Mushegh Ishkhan, Razmik Davoyan and Meschian). General themes in the songs included the philosophy of life's meaning, pain and mercy or joy and pride.