International Society for Contemporary Music
The International Society for Contemporary Music (ISCM) is a music organization that promotes contemporary classical music.
The organization was established in Salzburg in 1922 as Internationale Gesellschaft für Neue Musik (IGNM). Its core activity is the World Music Days Festival, held every year at a different location. The festival includes cutting edge productions of contemporary classical music. The World Music Days include a congress that serves as a meeting place between members of the organization.
Membership in the ISCM is organized through national sections that promote contemporary music in each country. These sections are usually organizations independent from the ISCM that send delegates to the ISCM General Assembly. Each member of the national section is also a member of ISCM and may send in 6 works that are evaluated for performance at the World Music Days.
National organizations that promote contemporary music, but have not been designated as the nation section of ISCM, are sometimes given an associate membership status. This status also applies to the members of these organizations. Some individual music professionals receive the "honorary membership" status.
ISCM publishes the World New Music Magazine.
National sections in English speaking countries 
- Australian Music Centre
- Canadian League of Composers
- Association of Irish Composers
- Composers Association of New Zealand
- Society for the Promotion of New Music
- League of Composers