Task: Text Categorization
Input (English): Bartok adapted the first movement of his first concerto for this instrument into the first of his Two Portraits. Tchaikovsky wrote his Serenade Melancolique for this instrument. Ravel's sonata for this instrument and piano has a "Blues" second movement. Leonid Kogan made a celebrated recording of Khachaturian's concerto for this instrument, for which Ernest Chausson wrote his Poeme. This instrument depicts the Hero's Wife in Richard Strauss's Ein Heldenleben. A "Vorspiel" in G minor opens Bruch's first concerto for this instrument. Johannes Brahms's only concerto for this instrument was written for Joseph Joachim. For 10 points, name this primary instrument of Paganini, a stringed instrument that is played by the concertmaster of an orchestra.
Output (English): Fine Arts