[2][5] In 1956 he was appointed principal chair of the oboe department at the Hochschule für Musik Detmold, having taught there since 1948[4][6] when the institution was founded.
[3] His students include Hansjörg Schellenberger, Fumiaki Miyamoto, Ingo Goritzki, Günther Passin and Gernot Schmalfuß.
[3] He recorded Mozart's Oboe Quartet in F major (K.370) with the Kehr Trio, issued in 1957 on Telefunken LGX 66065 in the UK.
[9] Winschermann founded the instrumental ensemble Deutsche Bachsolisten in 1960,[10] in order to provide historically informed performances of the music of Johann Sebastian Bach and his baroque contemporaries.
[4] In 2010 the group celebrated its 50th anniversary in a concert at the Beethovenhalle in Bonn, with the 90-year-old Winschermann conducting his own orchestration of Bach's Goldberg Variations.