 In 1898 Młynarski went to Warsaw, and upon founding the Warsaw Philharmonic Orchestra in 1901, summoned Kochanski, then aged 14, to be its concertmaster.He also took charge of his upbringing and education, treating him like a son and stating that he believed he would become a world-class soloist.In 1903, with sponsorship from leading Warsaw families arranged by Młynarski, Kochanski went to Brussels to study with César Thomson at the Brussels Conservatoire.