http://users.knoware.nl/~jsmeets/cgi-bin/ccd.cgi?comp=heinrich Classical Composers Database entry with positive evaluations of his work. http://pw1.netcom.com/~kallisti/Heinrich.html Kallisti Music Press article includes biography, MIDI audio files, and works list with purchase information. http://www.king.edu/MusicResearch/Heinrich/ King College Romanticism in Music class project with biography, list of compositions, critical analysis, discography, and bibliography.