Complex sentence: Edvard Armas Järnefelt (August 14,1869--June 23,1958), was a Finnish conductor and composer, who achieved some minor success with his orchestral works Berceuse and Praeludium.
Split into simpler sentences: Edvard Armas Järnefelt (August 14,1869--June 23,1958), was a Finnish composer and conductor. He achieved some minor success with his orchestral works Berceuse and Praeludium.