Also frequently performed is the Symphony No. 5 (Op. 50, 1921–22), presenting another battle between the forces of order and chaos. A snare drummer is given the task of interrupting the orchestra, playing and out of time, as if to destroy the music. Performed by the Danish Radio Symphony Orchestra conducted by Erik Tuxen at the 1950 Edinburgh International Festival, it caused a sensation, sparking interest in Nielsen's music outside Scandinavia. In Symphony No. 6 (without opus number), written 1924–25, and subtitled "Sinfonia Semplice (Simple Symphony)", the tonal language seems similar to that in Nielsen's other symphonies, but the symphony develops into a sequence of cameos, some sad, some grotesque, some humorous.