Paul HaaseHermann Paul Max Haase was a German baritone who partially lived and worked in the Netherlands.Singing careerHaase sang regularly from 1882 in the Netherlands, amongst others at the Hoogduitse Opera in Rotterdam. Between 1890 and 1894 he was a soloist four times in a performance of the Concertgebouworkest. He wrote the libretto for the opera Der falsche Czar by, in which he would play the main part, but he became ill.Teaching careerAt the Hoogduitse Opera he also became a singing tutor, both privately and at the Rotterdams Conservatorium. From 1895 till 1898 he taught at the Hochschule für Musik Karlsruhe, but also for a while in Cincinnati, and from 1898 till 1907 at the Hochschule für Musik und Tanz Köln. Some of his best-known students were the concert singers Hedy Iracema-Brügelmann and Pauline de Haan-Manifarges.DeathHis death in 1906 as a result of a stroke was national news. He died soon after his wife, the singer Sophie Bosse.