1. LKA11.1 Reference (shelfmark): LKA11.1 Title: Mein Kampf Scope & Content: Draft script and correspondence Collection Area: Sound Archive Languages: German Date Range: 1952 Extent: 10 folios
2. LKA11.5 Reference (shelfmark): LKA11.5 Title: Fruhlings-musik [Spring music] Scope & Content: Various drafts [German]. Undated document(s) Collection Area: Sound Archive Languages: German Date Range: Mid 20th century Extent: 60 folios
3. LKA11.6 Reference (shelfmark): LKA11.6 Title: Katzen-musik [Cat music] Scope & Content: Various drafts [German]. Undated document(s) Collection Area: Sound Archive Languages: German Date Range: Mid 20th century Extent: 14 folios
4. LKA11.3 Reference (shelfmark): LKA11.3 Title: Birdsong as a musical inspiration Scope & Content: Draft scripts and correspondence Collection Area: Sound Archive Languages: English Date Range: 1945-1953 Extent: 24 folios
5. LKA11.2 Reference (shelfmark): LKA11.2 Title: Aufstellung uber samtliche vogelstimmensaufnahmen [List of bird recordings] Scope & Content: List of recordings Collection Area: Sound Archive Languages: German Date Range: 1936 Extent: 5 folios
6. LKA11.4 Reference (shelfmark): LKA11.4 Title: Notes on bird species and Koch's recordings of them Scope & Content: Notes and typed drafts [English]. Undated document(s) Collection Area: Sound Archive Languages: English Date Range: Mid 20th century Extent: 41 folios