 Kulenkampff gave various other world premieres, notable of works by Ottorino Respighi (Violin Sonata No.2) and by Jean Sibelius.He was very much in demand and very busy during the Nazi period, as an "Aryan" musician although he did not subscribe to Nazi racist-nationalist theories and, by virtue of his importance and his "Aryan" status, was able to maintain proscribed parts of the repertoire.