Columbia subject headings:
B. Schott's Söhne (Mainz, Rhineland-Palatinate, Germany)--Correspondence.
Hindemith, Paul, 1895-1963--Correspondence.
Harvard subject headings:
Composers--Germany--Correspondence
Hindemith, Paul, 1895-1963. Correspondence
Music publishers--Germany--Mainz (Rhineland-Palatinate)--Correspondence.
Music--20th century--History and criticism
Personal correspondence
Schott Music (Firm)
Princeton subject headings:
Composers--Germany--Correspondence.
Hindemith, Paul, 1895-1963. Correspondence.
Music publishers--Germany--Mainz (Rhineland-Palatinate)--Correspondence.
Music--20th century--History and criticism.
Personal correspondence.
Schott Music (Firm)