Classical Music Archives: Isaac: Music files offered in MIDI format.
Heinrich Isaac: Biography, related composers, period background, and discography from the Here of a Sunday Morning radio program.
Heinrich Isaac: Biography and hymn tunes with portrait, MIDI audio, and scores in NWC format from the Cyber Hymnal.
Heinrich Isaac: Brief life and recommended recordings from Classical Net's Basic Repertoire List.
Heinrich Isaac: Brief filmography noting cinematic use of his works from the Internet Movie Database (IMDb).
Heinrich Isaac: Biography, musical background, and link to compositions from Hymnuts.
Heinrich Isaac: Karadar Classical Music Dictionary article with brief life and facsimile of a Credo.
Heinrich Isaac (1450-c1517): Listing of vocal works including some lyrics from the Lied and Art Song Texts Page at REC Music.
Heinrich Isaac (c. 1450 - 1517): Brief biographical sketch and Naxos discography.
Isaac, Heinrich: Biography following his progression from Flanders to Italy, the development of his music, and a summary list of works. From the Grove Concise Dictionary of Music entry at WQXR radio.
Isaac, Heinrich (c. 1450 - 1517), Netherlands: Biographical data, recommended CDs, books and sheet music, bibliography, and links to biographical essays.
Kunst der Fuge | Heinrich Isaac: Missa Carminum offered in MIDI files.
Mass Settings of Heinrich Isaac: Biography and overview of his liturgical works including various combinations of unison and polyphony.