Joseph Yasser
| Joseph Yasser | |
|---|---|
| Born |
April 16, 1893 Łódź, Poland |
| Died | September 6, 1981 (aged 88) New York City, New York, United States |
| Occupation | Musicologist |
| Years active | 1918–1981 |
Joseph Yasser (April 16, 1893 – September 6, 1981) was a Russian-American organist, music theorist, author, and musicologist. An influential figure who established a handful of musical institutions, Yasser is noted for his 1932 publication, A Theory of Evolving Tonality. He was active until his death at age 88 in 1981. Yasser was married but had no children.
Yasser was born in Łódź, Poland (then part of the Russian Empire) on April 16, 1893. He studied piano in Moscow with renowned pianist-cum-composer Jacob Weinberg and from 1912 to 1917 enrolled at the Moscow Conservatory, graduating with honors. In 1918 Yasser succeeded B. Sabaneev as leader of the school's organ department. In 1919 he was named Chief Organist of the Imperial Opera (Bolshoi Theatre), and in 1920 and 1921 toured Siberia with a state quartet as a pianist and lecturer. In 1921 Yasser moved to Shanghai, China, directing the "Shanghai Songsters" choral society and performing in concert, including as a member of a piano quintet which he formed.
In 1923 he moved to the United States, where he studied musical tuning and Jewish, and Russian music. Particularly interested in the Chinese organ, Yasser continued as a Chinese music lecturer in the United States. He served as organist and choir director at Congregation Rodeph Sholom from 1929 to 1960.
Yasser was a co-founder, along with Charles Seeger, of the American Library of Musicology in 1931, co-founder of the American Musicological Society in 1934, and collector and advocate of Jewish and Jewish-American music. In the 1960s, Yasser published The magrepha of the Herodian temple: A five-fold hypothesis in which he opined that the mysterious magrepha, an integral part of ancient Jewish rituals, was "not a musical instrument in the modern sense, and much less an organ" but instead a digging tool. However, he may be best known as the author of A Theory of Evolving Tonality (1932) and advocate of progressive equal temperaments; Yasser wrote music in 19 equal temperament. He supported the use of the musical interval measurements, namely the decitone, centitone, and millitone.
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