Josef Otto af Sillén was a Swedish composer born in 1859 and passed away in 1951. His works, such as the Violin Concerto in E minor and Symphony No. 3 in E minor, showcase his deep musical roots and innovative spirit. Af Sillén's compositions are known for their emotional depth and technical brilliance, making them a must-listen for classical music enthusiasts. His music continues to captivate audiences, offering a glimpse into the rich cultural heritage of Sweden.