Gotthold Schwarz is of a voice type whose term arose when?
Gotthold Schwarz Gotthold Schwarz (born 2 May 1952 in Zwickau) is a German bass-baritone singer and conductor. Based in Leipzig, he started as a member of the Thomanerchor and has conducted the Gewandhausorchester. He is the 17th Thomaskantor after Johann Sebastian Bach.
Tietz syndrome Tietz syndrome, also called Tietz albinism-deafness syndrome or albinism and deafness of Tietz, is an autosomal dominant congenital disorder characterized by deafness and leucism. It is caused by a mutation in the microphthalmia-associated transcription factor (MITF) gene. Tietz syndrome was first described in 1963 by Walter Tietz (1927–2003) a German Physician working in California.