Kurt Magnus Atterberg (December 12, 1887 – February 15, 1974) was a Swedish composer. He is best known for his symphonies, operas and ballets. Atterberg was born in Gothenburg, Sweden. He studied cello and would later on in life occasionally play the cello in orchestras. He published his first work, a Rhapsody for Piano and Orchestra, opus 1, in 1908. In 1910 he sent the Rhapsody and an incomplete version of the Symphony No. 1 in B minor, soon published as opus 3, to the Stockholm Conservatory for admission.