found: Music from Dutch libraries. Part III, Church music, c.1750-c.1820, on microfiche, 1994:Guide(The main source for the compositions filmed here is the Toonkunst Library in Amsterdam)
found: NG2(Maatschappij tot Bevordering der Toonkunst The association has built up an important library, which since 1955 has been an independent organization)
found: Reijen, P. van. De Toonkunst-bibliotheek: structuur en functie, Mens en melodie, xxiv (1969), 323-6(De Stiching Toonkunst-Bibliotheek vindt haar oorsprong in de Maatschappij tot Bevordering der Toonkunst)
found: Bibliotheek van de Maatschappij tot Bevordering der Toonkunst, Universiteit van Amsterdam, viewed November 16, 2020:dossier (the Stichting Toonkunst-Bibliotheek (STB) was founded on May 13, 1955) (in 2008 the STB was dissolved, ownership of the collections fell to the Maatschappij tot Bevordering der Toonkunst)
