Boris Kroyt (3 June 1897 – 15 November 1969) was a classical violinist and violist. He was the violist of the Budapest String Quartet from 1936 until the ensemble disbanded in 1967. Kroyt was born to a Jewish-Ukrainian family in Odessa, but spent his early life and career in Germany where he had been a child prodigy violinist. From the outbreak of World War II until his death at the age of 72, he lived in the United States and had become a naturalized U.S. citizen in 1944.
Early life
Kroyt was born in Odessa to Osip Kroyt and his second wife Cecilia. His father, a tobacco merchant, had been born in Russia near the border with the Austro-Hungarian Empire. His mother was Austrian. Kroyt had an older sister Bertha (born in 1893) and a younger brother Miron (born in 1902). The family's apartment in the Jewish ghetto of Odessa was a meeting place for young radicals including Leon Trotsky and other members of the Bronstein family who were cousins of Kroyt's father. The Kroyts rented out one of their rooms to an art student who was also an amateur violinist. The four-year old Boris would listen to him and attempt to sing along with his playing. Taken with the child's music ability, he made him a violin out of cardboard. He later bought Kroyt his first real violin and persuaded a violinist friend of his to give the child proper lessons.
Kroyt's mother was initially opposed to her son becoming a musician, but on the advice of the violin virtuoso Alexander Fiedemann who had heard Boris playing a Haydn string trio with two other children, she eventually relented and enrolled him at the Imperial Music College of Odessa. His teacher there was Fiedemann's brother Max. Kroyt made his first concert appearance at the age of nine, accompanied by Max Fiedemann on the piano. At the age of ten, Kroyt's mother decided to send him to Berlin to study at the Stern Conservatory under Alexander Fiedemann who had offered to pay for his travel to Berlin and his living expenses. Before he left Odessa, Kroyt gave a concert to raise further funds for his study in Berlin. He raised 1400 rubles at the concert which had been attended by a thousand people.
Once Kroyt arrived in Berlin, Fiedemann persuaded the banker Franz von Mendelssohn (a relative of the composer Felix Mendelssohn) to provide Kroyt with a stipend and to finance the hiring of halls and orchestras for his soon-to-be concerts. Mendelssohn also gave Kroyt a violin made by Lorenzo Storioni. Kroyt returned to Odessa in 1910 for his Bar Mitzvah and to play at the Odessa Factory, Industry and Arts Exposition. It was the last time he would ever visit his native city. Kroyt lived in boarding houses in Berlin until 1912 when his mother and younger brother Miron (a student pianist) arrived in Berlin. His father and sister joined them in 1913. Later that year Kroyt graduated from the conservatory with the Gustave Hollander Gold Medal.
Music career and marriage
After his graduation from the Stern Conservatory, Kroyt embarked on an international concert career as a violinist, playing in solo recitals and violin concertos, and with string quartets. He played as a violin soloist under the conductors Richard Strauss and Erich Kleiber and in chamber ensembles with the cellist Pablo Casals and the pianists Artur Schnabel, and Artur Rubenstein. He founded his own string quartet in 1921 and from 1927 also played with the original Guarneri Quartet for seven years as its violist. He had learned the viola as a teenager in three days when Alexander Fiedemann, who had his own string quartet at the time, insisted that Kroyt substitute for the quartet's violist who had taken ill. In 1924 Kroyt played in the first post-World War I performance of Schoenberg's Pierrot Lunaire in an ensemble that included Schnabel, the cellist Gregor Piatigorsky and the soprano Marie Gutheil-Schoder. A loud disturbance with boos and shrieking from anti-modernists broke out as the performance began. The music theorist Fritz-Fridolin Windisch jumped onto the stage to continue the protests and had to be forcibly removed. At that point Schnabel, Kroyt, and Piatigorsky began playing a circus polka. The audience burst out laughing, after which the performance went on without interruption to a successful reception. To supplement his meager earnings as a classical musician in the 1920s, Kroyt also played jazz in the Ruscho and Tariffa cafés in Berlin and led a small orchestra that performed and recorded tango music and operetta tunes. Unwilling to have his real name associated with the orchestra, he appeared with them as "Tino Valerio".