In the book, "The Philadelphia Orchestra, A Century of Music", p. 74,
is the following:
"Ormandy's father, Benjamin Blau, was a dentist who loved the
violin and introduced his son to the instrument at age three.
His mother is listed in several accounts as having been named
Rosalie Ormandy Blau, which would account for the name under
which he achieved fame. However, Ormandy always firmly declined
to discuss the origins of the name and his reasons for adopting
it professionally, leaving a certain mystery about it. Two
younger brothers followed him to the United States--Martin, a
well-known New York cellist, and Laszlo, a Washington, D.C.,
I believe his cellist brother also changed his name to Ormandy.
I have a liner note that reads, "In 1921 he moved to America (changing
his name: 'blau' being an undesirable German colloquialism)...."
Perhaps this is the reason??
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