The online portal "BabelScores - contemporary music online" is dedicated to contemporary or new music. The focus is primarily on music that has been created in the last 40 years. With over 210,000 music pages, BabelScores is considered one of the most important online libraries for new music and also offers users the opportunity to listen to embedded audio recordings of the works.

Babelscores thus combines the advantages of an open-access online library and streaming service with the goal of promoting and disseminating new music.

The bibliographic database contains over 356,000 references to musical works that have been printed in editions and series on classical music. The basis is the specialist bibliography Collected Editions, Historical Series & Sets & Monuments of Music: A Bibliography, by George R. Hill and Norris L. Stephens, Berkeley: Fallen Leaf Press 1997.

In addition, over 20,000 name variations and vital records of composers, librettists, and editors are available.

"Index to Printed Music" is an ongoing project of the non-profit organization James Adrian Music Company.

The "JSTOR Complete Music Collection" was compiled especially for the needs of the FID Music and contains 111 titles from the field of musicology. It includes not only the titles integrated in JSTOR's "Music Collection", but also all music-related journals offered in the JSTOR archive program. Journals are covered from their first volume up to a so-called "moving wall" (depending on the title, up to ten years before the current volume). The collection contains journals from 16 countries, including such traditional titles as “Archiv für Musikwissenschaft”, “Musical Times”, “Revue de Musicologie” or “Studien zur Musikwissenschaft”.

Medici.tv is a streaming portal from the field of classical music. The video-on-demand offer includes concert recordings, opera recordings and ballet performances from the most prestigious institutions and competitions in the international music world - including numerous live broadcasts.

Medici.tv also includes a large catalog of interviews, documentaries and recorded master classes by renowned personalities.

The "Music Index Online" contains 1.4 million references from over 850 international musicological journals and annuals from more than 40 countries. All areas of classical and popular music are covered. Essays, conference reports, obituaries, reviews of books, performances and recordings from the reporting year 1974 are listed. Smaller amounts of data are included for the period 1952 - 1973.

The FID license includes Volumes II, III and IV, which build on Classical Scores Library I (freely accessible as a national license throughout Germany).

Volume II provides access to approximately 200,000 pages, including new works by contemporary composers as well as numerous previously unrepresented composers from earlier centuries - e.g. Claude Debussy, Gabriel Fauré, Maurice Ravel, Andrew Schultz, Moya Henderson, Nicholas Vines, Giovanni Sammartini and Michael Haydn. In addition, the database contains all 60 volumes of The Symphony 1720-1840, the largest full-text collection of 18^th-century symphonies.

Volume III offers approximately 400,000 pages of copyrighted editions by composers worldwide. The collection includes editions from publishers such as Chester Music, Novello & Company, Faber Music, Wilhelm Hansen, Donemus, and others, numerous important choral and instrumental works for brass, woodwind, and other instrumental groups. In addition, modern editions of works by Bach, Beethoven, Berlioz, Brahms, Byrd, Gibbons, Handel, Haydn, Mendelssohn, Monteverdi, Mozart, and Purcell are presented, as well as classical works by Elgar, De Falla, Franck, Holst, Joubert, Maxwell-Davies, Musgrave, Saariaho, Sallinen, Stravinsky, or Tchaikovsky.

New since 2017: Volume IV, when completed in 2017, contains approximately 300,000 pages (4,000 - 5,000 works) primarily by 20^th and 21^st century composers. Mainly represented original publishers are Donemus (Netherlands), Hansen (Denmark), Novello and Chester Music (both UK). Included in particular are lesser-known (small and single) works by well-known authors.

The “Oxford Scholarship Online Music Collection” provides access to selected scholarly textbooks from Oxford University Press and other university presses. Approximately 330 titles from the Music Collection are available from Oxford University Press, the Yale Scholarship Online Music Collection, the University Press of Mississippi Music Collection, and the North Carolina Scholarship Music Collection.

The collection includes all titles relevant to musicology that have been published since 2013 and are offered as e-books on the aggregator platform MyiLibrary. In particular, titles from Bloomsbury Publishing, Cambridge Scholars Publishing, McFarland & Co, Peter Lang, Ashgate Publishing, Rowman & Littlefield, Routledge, etc. are represented. The title list is updated monthly. 

The database "Recent Researches in Music Online (RRIMO)" provides access to critical editions of musical works in a total of seven series: Medieval, Renaissance, Baroque, Classical, 19^th/20^th century, American and non-written musical traditions with fully searchable textual content of scores and partbooks.
RRIMO also includes titles from the Collegium Musicum series, founded by the Yale University Department of Music in 1955 and published by A-R Editions from 1969 to 2017.

RIPM Preservation Series: European & North American Music Periodicals is a full-text database and includes indexes to approximately 300 18^th and 19^th century music periodicals, more than half of which are available in full-text.