sentences:  Wührer was a founder of the International Society for Contemporary Music in Vienna.He formed friendships with composers Hans Pfitzner and Max Reger, and became associated with Arnold Schoenberg and his circle, participating in performances of Schoenberg's setting of 15 poems from "Das Buch der hängenden Gärten", Op.15; his "Pierrot Lunaire" as part of a touring company presenting the work in Spain; and Webern's Pieces for Cello and Piano, op.