 On the occasion of his 65th birthday in 1963, Müller was awarded the Art Award of the City of Halle for his lifetime artistic accomplishments and for his tile paintings in the “frohe Zukunft” school.An exhibition of his works was also held to mark this occasion at the State Gallery in Moritzburg, now the State Museum.In the preface to the catalogue, Heinz Schönemann, then the director of the State Gallery, wrote “A pupil himself of Burg Giebichenstein, he could be described as a silent master of the artists of Halle, as so much of their work essentially originated with him.