From early childhood (3 years old), Sajus started learning to play the piano. Entered the Ankara Conservatory in 1984. wrote his first sonata. Later, he went to Germany, where he worked mainly in 2005-2010. was composer-in-residence at the Dortmund Theater. in 2009 presented his first symphony ("Istanbul Symphony"). in 2011 recorded "Mesopotamia Symphony", 2012 - "Symphony of the Universe". He composed several oratorios, concertos for clarinet, string quartet, trumpet, sonatas for piano and clarinet, as well as jazz compositions, piano interpretations of various composers (Beethoven, Mozart, Scarlatsi, Gershwin, Tchaikovsky, etc.), music for Turkish films.

The work of Fazylos Sajaus is characterized by expressiveness, rich orchestration, features of dance, rhapsody, traditional eastern instruments (nej, darbuka, kudium, etc.) are widely used. He dedicated many of his works to Eastern mystical literature (Omar Khayam, Alevi poet Muhjidin Abdali, etc.).

in 2013 Fazylas Sajus was sentenced to 10 months by an Istanbul court for a public speech mocking Islam. suspended prison sentence