Correspondence of 1947–1948 involving individuals or organisations with names beginning J-: Jussi Jalas, Erwin Janowitzer, Adolf Janssen, Pianohaus Jecklin, Leslie Jefferson, the Librairie et Éditions de la Jeunesse Rurale (Leuven)Muziekhandel Z. A. Jobse, Eugen Jochum, Martin F. de Jong, K. Joo...
Correspondence to or from music publishers and/or individuals with names beginning K-: Kaabers Musikforlag of Aarhus (Denmark), Pierre Kaelin of Lausanne (choirmaster, Radio Switzerland), Emerson Kailey of the American Embassy in Paris, Ralph Hawkes, P Kah Eng of Penang, Lonnie Kahn and Co. of T...