 1 was mailed to about 300 individuals and institutions.While the initial effort towards the creation of the Newsletter lies solely with these four men, many other scholars were working towards the goals the Newsletter set out to promote.A letter separate from the Newsletter signed by the aforementioned four, but also Manfred Bukofzer, Frances Densmore, Mieczslaw Kolinksi, Curt Sachs (who worked alongside Hornbostel), Harold Spivacke, and Richard Waterman, was sent to about 70 individuals.