The Denmark musician Carl August Nielsen is one of the leading musical figures in Scandinavia. As a composer, conductor and a teacher, Nielsen created diversified musical pieces, of which the most celebrated is his symphony. His work didn’t find its global fame until Leonard Bernstein recorded a Nielsen collection with New York Philharmonic, therefore bringing Denmark music to the spotlight around the world.

Flute concerto is one of Nielsen's most famous works in his late years, during which his works started to become mature. This is a piece that reflects his yearning for purity, simplicity and contrast in music, in which he wove abundant polyphonic intricacies into his musical melodies and adopted skillful tonic development techniques, mixing elements from both classical and avant-garde and breaking free from the forms of classical concerto, presenting the work in two movements.

This thesis is a study concerning the analysis and interpretation of Nielsen’s Flute concerto. The first part is an introduction to his life, style and the creative background of Flute concerto. Secondly, the analysis of form and structure of the musical piece is given. The third part covers the interpretation and discussion of the performance of this piece. It is hoped that, through this work, a better understanding of this musical piece can be achieved so that future performance can better reflect the composer’s thoughts on it.