International Society for Contemporary Music
Aside from hiatuses in 1940 and 1943-5 due to World War II , the ISCM's core activity has been an annual festival of contemporary classical music held every year at a different location , the first of which took place in 1923 in Salzburg , which has come to be known as the ISCM World Music Days ( sometimes World New Music Days , abbreviated either WMD or WNMD depending on which name is used ) . 
<triplet> ISCM World Music Days <subj> 1923 <obj> inception