The works of his youth are of a late-Romantic style.
Between 1890 and 1894 ( nine to 13 years of age ) he wrote 31 pieces with corresponding opus numbers.
He started numbering his works anew with ‘ opus 1 ’ in 1894 with his first large scale work, a piano sonata.
Up to 1902, Bartók wrote in total 74 works which can be considered in Romantic style.
Most of these early compositions are either scored for piano solo or include a piano.
Additionally, there is some chamber music for strings.
Compared to his later achievements, these works are of less importance.