According to the Internet source given below, Lorenz Maierhofer is an Austrian composer, songwriter, author and international lecturer born in Graz.
His compositions are characterized by a large stylistic breadth - with contemporary and historical sound languages as well as those of jazz, gospel and alpine folk music. Lorenz Maierhofer is the editor of a comprehensive oeuvre on music and choir education, his books such as those found at Edition Helbling
are among the standard works for school and choir in German-speaking countries.
||Biography by wikipedia.org.