I
- In Memory of Marc Blitzstein (1905-1964) (4)
- In the beginning [sketch] (1)
- Influence of Jazz on Modern Music (2)
- Inscape [condensed score draft] (1)
- Inscape [rough sketches] (1)
- Intro[duction] of N[adia] Boulanger as Teacher (1)
- Introducing Shostakovitch at Dinner (1)
- Irving Fine (1914-1962) (4)
- Isamu Noguchi's set for Appalachian Spring (1)