1. Zweites Konzert für Klavier und Orchester (2 folders) Box 20 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
2. Zurich Box 2 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » I. CORRESPONDENCE » Newspapers, etc.
3. Zurich Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » III. CLIPPINGS
4. Zagreb Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » III. CLIPPINGS
5. Woodwind Quintet Box 20 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
6. Woodwind Quartet (2 folders) Box 20 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
7. Wien Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » III. CLIPPINGS
8. Westdeutscher Rundfunk Box 2 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » I. CORRESPONDENCE » Newspapers, etc.
9. Weil Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » III. CLIPPINGS
10. Wagner, Wieland Box 3 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » II. WRITINGS AND NOTES
11. Wagner Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » III. CLIPPINGS
13. VI. MUSIC MANUSCRIPTS Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981
14. Vier Jahrhunderte Amerikanischer Musik Box 3 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » II. WRITINGS AND NOTES
15. Vicenza Box 2 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » I. CORRESPONDENCE » Newspapers, etc.
16. Veris Carmen Box 20 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
17. Venice Box 2 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » I. CORRESPONDENCE » Newspapers, etc.
18. Venice Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » III. CLIPPINGS
19. Veggio - Doni Box 20 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
20. Various typescripts (folder 5) Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » II. WRITINGS AND NOTES
21. Various typescripts (folder 4) Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » II. WRITINGS AND NOTES
22. Various typescripts (folder 3) Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » II. WRITINGS AND NOTES
23. Various typescripts (folder 2) Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » II. WRITINGS AND NOTES
24. Various typescripts (folder 1) Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » II. WRITINGS AND NOTES
25. Valses - Ecc. Box 20 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
26. Universal Edition A.G. Box 2 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » I. CORRESPONDENCE » Newspapers, etc.
27. UNESCO Box 2 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » I. CORRESPONDENCE » Newspapers, etc.
28. Undated Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » III. CLIPPINGS
29. T-Z Box 1 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » I. CORRESPONDENCE
30. Trio Box 20 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
31. Three Songs on Texts of Robert Hillyer Box 19 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
32. Three Songs on Texts by Jacophon da Todi Box 19 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
33. Three Gospel Hymns (2 folders) Box 19 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
34. Three Epigrams for Clarinet and Piano Box 19 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
35. Three American Songs (folder 2) Box 19 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
36. Three American Songs (folder 1) Box 18 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
37. Thoughts & Afterthoughts - Homage to François Lesure Box 18 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » VI. MUSIC MANUSCRIPTS
38. "The Chansons of Jacques Archedelt" - index and introduction, 1942 Box 5 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » II. WRITINGS AND NOTES » Dissertation ("The beginnings of the Italian madrigal and the works of Arcadelt")
39. Tape 8 Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » IV. TAPES
40. Tape 7 Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » IV. TAPES
41. Tape 6 Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » IV. TAPES
42. Tape 5 Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » IV. TAPES
43. Tape 22 Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » IV. TAPES
44. Tape 20 Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » IV. TAPES
45. Tape 19 Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » IV. TAPES
46. Tape 14 Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » IV. TAPES
47. Tape 12 Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » IV. TAPES
48. Tape 11 Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » IV. TAPES
49. Tape 10 Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » IV. TAPES
50. Tape 1 Box 4 Indiana University » Lilly Library » Collection: LMC 2308: Helm mss. II, 1948-1981 » IV. TAPES