In different times of 20th century technology played various roles in fulfilling listeners’ and authors’ expectations. The whole process reached its peak certainly in the post-war music development when technology was perceived either as a threat or a way to salvation of the contemporary music. The most remarkable problem represented a buying on future’s credit. Leaders of European and American avant-garde swore on the future as the only guarantee of the contemporary music authenticity unmasking the obsolescence of yesterday’s music. Not all composers were excited by technological possibilities of electronic media and left the optimistic mainstream sooner than others. Can music exist without technology? Can technology be possibly abandoned by composers and artists? And under what conditions?