Alfonso Ferrabosco: Ayres
- Texts in HTML, JPG facsimiles of pages, and MIDI audio files of all works contained in this 1609 book. Audio available in individual downloads and one ZIP file.
- http://kulturserver-bayern.de/home/harald-lillmeyer/Texte/Downloads/Downloads.html

Alfonso Ferrabosco II
- Biography with internal links to family members, other artists of the period, and related historical material from the Here of a Sunday Morning radio program.
- http://www.hoasm.org/IVM/FerraboscoII.html

Ferrabosco, Alfonso II
- Biography of the possibly illegitimate son of the original Alfonso noting his instrumental abilities, royal appointments, style, and major works. From the Grove Concise Dictionary of Music entry at WQXR radio.
- http://www.wqxr.com/cgi-bin/iowa/cla/learning/grove.html?record=3137