Letter, 20 June 1934, Czechoslovakia, Donald Tovey to Mary Grierson. Plans for forthcoming concert and details of the B.B.C's involvement. Holograph signed.

Letter, [n.d], Donald Tovey to Mary Grierson. Explanation of changes to a concert programme. Holograph incomplete.

Letter, 17 April 1934, Copenhagen, Fritz Busch to Donald Tovey. News of the Busch brothers in Edinburgh, Fritz Busch directing Sergeant concerts in London and plans to work with Casals. Typescript signed.

Letter, 6 December 1937, Prague, Heinrich Swoboda to Donald Tovey. Expressing delight at plans to give a concert in Edinburgh, plans to perform in Prague with Casals, and hopes to perform in London for Boult and the B. B. C. Holograph signed.

Letter, [n.d], Barcelona, Joaquim Pena to Donald Tovey. Thanking Tovey on the behalf of the ' Orquestra Pau Casals ' for offering to do two concerts. Holograph signed.

Letter, [1924], London, Pablo Casals to Donald Tovey. Regretting that Casals can not play Tovey's cello concerto on the dates suggested, listing the concerts Casals is playing. Holograph signed.

Letter, 8 May 1925, Barcelona, Pablo Casals to Donald Tovey. Praising Tovey's written work, especially the preface, for piano, outlining forthcoming concerts in Barcelona and a hope that Casals may be able to play Tovey's concerto in the Autumn. Holograph signed.

Letter, 26 August 1931, Pablo Casals to Donald Tovey. Thanking Tovey for his last letter, discussion of concerts at Edinburgh and Barcelona. Holograph signed.

Letter, 2 January 1935, Barcelona, Pablo Casals to Donald Tovey. Dates of Casals arrival, request that a Bach concerto be performed. Holograph signed.

Letter, 1 October 1933, Pablo Casals to Donald Tovey. Informing Tovey that Casals is going back to Barcelona, describing a concert of Mozarts' works and asking about concerts in Edinburgh. Holograph signed.