Columbia subject headings:
Harvard subject headings:
Composers--Switzerland--Correspondence.
Conductors (Music)--Switzerland--Correspondence.
Desarzens, Victor--Correspondence.
Martin, Frank, 1890-1974--Correspondence.
Princeton subject headings:
Composers--Switzerland--Correspondence.
Conductors (Music)--Switzerland--Correspondence.
Desarzens, Victor--Correspondence.
Martin, Frank, 1890-1974--Correspondence.