- (Josef) Willem ( ˈwɪləm ). 1871–1951, Dutch orchestral conductor, noted for his performances of the music of Mahler
Collins Concise English Dictionary © HarperCollins Publishers::
Mengelberg /ˈmɛŋɡəlˌbɜːɡ; Dutch: ˈmɛŋəlbɛrx/ n