|Birth Day||December 30, 1880|
|Age||139 YEARS OLD|
|Died On||Feb 13, 1952 (age 71)|
Musicologist who edited The Kochel, a catalogue of Mozart's works, and authored Short History of Music and Greatness in Music.
He was a music critic for the Muchner Post.
In 1945, he published the book Mozart: His Character, His Work, an influential study of Mozart and his music.
Albert Einstein was his cousin.
He became one of the foremost authorities on Wolfgang Amadeus Mozart.