The second international congress of music libraries was held 20–22 July 1950, in association with the Gesellschaft für Musikforschung in Lüneburg, Germany.
- Reports published in Zweiter Weltkongress der Musikbibliotheken Lüneburg 1950, Kongress-Bericht, ed. by Hans Albrecht (Kassel: Bärenreiter, 1951)
