Win! Music of the Spheres by Rued Langgaard

We've got five copies of a new recording of Rued Langgaard's Music of the Spheres to give away. This unusual large-scale orchestral work, requiring eight horns, organ and piano, four sets of timpani, a 15-strong 'orchestra in the distance' and choir, was composed by the Danish composer between 1916-1918.

Conductor Thomas Dausgaard is a recent champion of the rarely performed piece, which was admired by the composer György Ligeti. This recording is with the Danish National Symphony Orchestra and Choirs (Dacapo 6.220535). Dausgaard will also be giving the UK premiere of the work at this year's BBC Proms, on 11 August.

To enter, simply answer the following question: In which year was Rued Langgaard born?