Complex sentence: The four stanzas were assigned a melody of the Bohemian Brethren, adapted to a more modern form by Karl Lütge in 1917, commemorating 400 years after the Reformation.
Split into simpler sentences: The four stanzas were assigned a melody of the Bohemian Brethren. The melody of the Bohemian Brethren was codified to a more modern form by Karl Lütge in 1917, commemorating 400 years after the Reformation.