Patrick Walliser spent his early childhood in Scotland, Northern Ireland and southern England, his schooling with piano lessons and basic musical subjects in Baden-Württemberg. In 1974 he received a diploma from the School of Eurythmic Art and Art Reisinger Berlin. From 1974 to 1978 he studied conducting at the Hochschule der Künste Berlin under Hans-Martin Rabenstein.
Subsequently, he was until 1980 Solo-Repetitor on the stages Kiel and had his first conducting successes with Hansel and Gretel. At the Theater Ulm he was from 1980 to 1983 study director, bandmaster and assistant to the General Music Director. During this time he conducted twelve repertoire pieces of music theater. He also received instruction in song accompaniment with Irwin Gage and recitative in Johann Sonnleitner.