1. MS Mus. 435 Reference (shelfmark): MS Mus. 435 Title: Alan Bush Collection. Correspondence with the musicologist Boris Kotliarov Scope & Content: Correspondence with the musicologist Boris Kotliarov. Kotliarov published a study of Bush’s music, Alan Bush (Moscow, 1981). Collection Area: Music Collections Languages: English Date Range: 1943-1982 Extent: 1 volume