The Silvio Coscia collection is organized into the following six series:

  1. Correspondence
  2. Programs
  3. Clippings/Publicity
  4. Biographical sketches
  5. Miscellaneous
  6. Photographs

There is one folder of correspondence, primarily consisting of letters to Coscia from various singers and conductors. Much of the correspondence is from G. Lauri-Volpi. Other correspondents include Tamaki Miura, Cesare Siepi, Gunther Schuller, Carlo Gatti[?], and Franco Dante. While two letters date from the 1920s, most date from the 1950s and 1960s.

The programs folder primarily contains programs featuring works by Coscia(sometimes listed as Sylvius). There are several programs from Giuseppe Creatore Memorial concerts. Featured in these programs are Coscia’s Begli occhi lucenti, Concert Piece in C major, Special numbers (Satanic Minuet, The Old Music Box, Fire Dance), Musical sketches in three moods, Neapolitan Day (in Three Moments) as well as program notes for Coscia’s Swedish Rhapsody. Other programs include two given by the Bande Municipale di Venezia featuring Coscia's Drammatica Elegia.

The third series, Clippings/Publicity, contains a brochure from the Stadtisches Theater Wurzburg, as well as articles about a performance of The Barber of Seville that took place there in 1965. There is an issue of Opera News from 1949 that contains a “Meet the [Met] Orchestra” feature; a concert review of a performance by Cesare Siepi that featured Coscia’s Begli occhi lucenti; 2 copies of a press brochure about Coscia; two copies of a works list of pieces by
Coscia published by M. Baron; and a short biographical sketch.  Also included are a memorandum to publicist Charles Forrester, a mention in the "Honors to Members" section of ASCAP Today (July 1968) and several Coscia obituaries.

The fourth series consists of one folder containing brief biographical sketches and as well as comments regarding specific aspects of singing for several of the singers with whom Coscia worked. These include: Licia Albanese, Lucine Amara, Ettore Bastianini, Kurt Baum, George Cehanovsky, Jerome Hines, Frederick Jagel, Eva Likova, Lauri- Volpi, Giovanni Martinelli, Margaret Matzenauer, Nicholas Moscona, Patrice Munsel, Herva Nelli, Elena Nicolai, Lily Pons, Aldo Protti, Norman Scott, Cesare Siepi, Antonietta Stella, Rise Stevens, Brian Sullivan, Richard Tucker, Frank Valentino, Leonard Warren, and Robert Weede.

The miscellaneous series consists primarily of Silvio Coscia’s teaching/written materials including “A Study on Singers and Musicians Musical Hearing,”
a description of an NEC Italian diction course, and the article "Come Scegliere un Maestro di Canto" from la follia di new york - dicembre 1968).

The largest series in this collection consists of photographs which have been organized into the following categories:

  1. Photos of Silvio Coscia, 1 folder
  2. Photos of ensembles, 1 folder
  3. Photos of other groups/miscellaneous, 1 folder
  4. Photos of various artists (singers and conductors). There are 12 folders of these photos, organized alphabetically by artist’s last name.  The majority of them are autographed to Coscia. (Please request list). The last folder contains photos of individuals who have not been identified.