During the year 1845-46 I heard and became well acquainted with three famous violinists, Vieuxtemps, Ole Bull, and Sivori, who came to Boston and played many times both in public and in private. They were all great players, each having his special individuality. Vieuxtemps and Ole Bull I met several times in later years, and became familiar with their playing. Vieuxtemps came to Weimar and played both in private and in public. His playing was wonderfully precise and accurate, every tone receiving due attention, and his phrasing was delightful. Scale and arpeggio passages were absolutely clean and without a flaw. He was certainly a player of exquisite taste, and he still preserved his characteristics when I heard him years later, in 1853 at Weimar, and in 1873 at New York. Ole Bull came to Boston a year or so after Vieuxtemps. He was a born violinist, and developed after his own fashion and nature, in the manner of a genius. Vieuxtemps was the result of scientific training and close adherence to well-founded principles. Ole Bull, on the other hand, was a law unto himself, and burst out into full blossom without showing the various degrees of growth. He did not realize the importance of close attention to detail while in the course of development.
Sivori was of the gentle, poetic, and graceful class of players. Beauty and grace rather than self-assertion characterized his style. Ernst, whom I heard in Homburg in the year 1852, was a player of great intensity of feeling, and was regarded as the most fervent violinist of his time. Joachim's style impressed me as classical and rather reserved, and while I enjoyed and admired it, there was present no feeling of enthusiasm. Wilhelmj, with his broad and noble style, was certainly most impressive. Henri Wieniawski had a musical organization of great intensity, and this, combined with his perfect technic, made his playing irresistible. Ferdinand Laub, for some reason not so well known to the general public as he should be, is generally conceded by the most distinguished violinists to have been the greatest of all quartet-players. Laub was concertmeister during the whole period of my stay in Weimar, and was an intimate friend of mine. It will be remembered that at that time Bernhard Cossmann was the violoncellist of the Weimar string quartet. I owe many delightful moments of musical enjoyment to his exquisitely poetical and refined playing. The last time I met him was at his own house in Frankfort. His wife and children were present, and being thus quite _en famille_, we played together, for the sake of old times, the piano and violoncello sonata of Beethoven in A major.