Marko received his D.M.A. degree in organ performance from Indiana University School of Music. He is currently teaching organ and church music at University of Indianapolis and working as a Music Associate/Organist at Northminster Presbyterian Church and also as an organist at Christian Theological Seminary.

Dr. Petričić won awards in numerous organ competitions, most notably the First Place at the San Marino National Organ Competition in California in 2000. His concert engagements included recitals at the Church of the Holy Trinity and St. Patrick’s Cathedral in New York. He has performed organ recitals throughout the United States, Germany, Sweden, Spain, and Yugoslavia. Recently, he participated in the Summer Organ Academy in Leipzig, Germany and French OrganMusic Seminar in Paris, France.