As a pedagogue he has worked in Warsaw music education at the higher and academic level: J.Elsner Music School, K.Szymanowski Music School, F. Chopin Music Academy and Kardynal Stefan Wyszynski University (theoretical and practical musicology).
He has toured as a soloist and an accompanist around the country and abroad.
He is a laureate of many composition prizes, for example, First Prize at the Young Composers Competition ZKP(for Assemblage for orchestra) as well as civil prizes and distinctions (the prizes of the Ministry of Culture and Art, Ministry of National Education).
Marian Sawa has composed around 1,000 pieces, including instrumental, vocal and vocal-instrumental works.
Many of his works evolved from a religious inspiration, including numerous pieces for a mixed choir and a men choir a cappella, but also great cantata-oratorio forms ( Via Crucis, Missa Claramontana, few forms of Magnificat and Stabat Mater). In his music he often recalled gregorian chant, Polish church songs and Polish folklore, sometimes combining them in one piece. Marian Sawa's works has been registered on over 40 Cds by, for example, Acte Preable or Musica Sacra Edition. His organ compositions were performed by Andrzej Chorosiński, Joachim Grubich, Marietta Kruzel Sosnowska, Józef Serafin, Jan Szypowski, Irena Wisełka-Cieślar.
In 2006, on the first anniversary of Marian Sawa's death, there has been a Marian Sawa's Society created, which main goal is the promotion of artist's works, publishing his works as well as organizing concerts and festivals dedicated to his creative activity. After Marian Sawa's death the owners of his works are Aleksandra and Radosław Sawa, who cooperate with the Marian Sawa's Society.
- Michael F. Runowski: Polnische Orgelmusik nach 1945. Saarbrücken: Verlag Dr. Müller (2009). ISBN 9783639116908
- web pages of society – Towarzystwo im. Mariana Sawy in Polish language
- Životopis web page in polish language