Briefwechsel
Briefe von Schönberg an I
| Empfänger | Firma |
| Ibach | |
| IGNM | |
| Independent Music Publ | |
| Installationsbureau Li-Kra | |
| Intellecti | |
| Int[ernationalen?] Schlafw[agen?] Ges[ellschaft] | |
| ISCM | |
| Israel, Consulate | |
| Israelitische Kultusgemeinde | |
| ITHMA | |
| Ibach, A. Rudolf | |
| Ierardi, Joseph | |
| Inman, Charles | |
| Inman, Philip | Williams and Norgate |
| Irino, Yoshiro | |
| Irish, Florence Atherton | Hollywood Bowl |
| Irish, Florence Atherton | Sou Cal Sym Assn |
| Israel, N. | Kaufhaus Israel |
