Charles-Valentin Alkan (1813-1888) - Brief biographical sketch, caricature, summary of piano works, and Naxos discography. - http://www.naxos.com/composerinfo/18.htm
Charles-Valentin Alkan (1813 - 1888) - Life, related composers, comments on his virtuosity and the difficulty of many compositions, MIDI audio samples, and photographs from the Karadar Dictionary. - http://www.karadar.it/Dictionary/alkan.html
Charles-Valentin Alkan - Wikipedia article with biography and possibly apocryphal story of his death, summary of his compositional style and performing abilities, internal references, external links, and portrait photograph. - http://en.wikipedia.org/wiki/Charles-Valentin_Alkan
Charles Alkan - MIDI audio files including Douze Études, dans les tons majeurs, Douze Etudes dans le tons mineurs, Esquisses, and Trois grandes Etudes pour le piano, plus portrait. From Kunst der Fuge. - http://www.kunstderfuge.com/alkan.htm
Alkan, Charles-Valentin - Biography noting his brilliance, virtuosity, and eccentricity from the Grove Concise Dictionary of Music entry at WQXR radio. - http://www.wqxr.com/cgi-bin/iowa/cla/learning/grove.html?record=217
The Strange Case of Charles Valentin Alkan - Biography by James F. Penrose noting his unconventional musicianship, compositional style, and life. - http://www.newcriterion.com/archive/11/may93/alkan.htm