The Yellow Sound
He and his "Blue Rider" colleagues , including Franz Marc , August Macke , and Alfred Kubin , worked intensively on a planned 1914 Munich production , but it was cancelled by the outbreak of World War I . 
<triplet> Franz Marc <subj> Munich <obj> work location <subj> World War I <obj> conflict <triplet> August Macke <subj> World War I <obj> conflict