Music files offered in MIDI format.

Biographical material on the two composers and their relationship with each other. Includes sample music in MIDI audio format.

Biography of the student of Léonin with major musical accomplishments from the Grove Concise Dictionary of Music.

Wikipedia article summarizing his style and noting his influence on late 20th Century minimalism such as that of Steve Reich. Includes internal references to related people and topics.

Biographical background and relationship with Leonin lead to a brief explanation of the growth of polyphony and indications of how it led into development of the motet. Includes links.

Classical Net's Basic Repertoire with biography, historical significance, and recommended recordings.

Brief biography of Perotinus Magister with key works, suggested reading, timeline, and recommended recordings from Humanities Web.

Biography, musical contributions, related composers, and related material from the Here Of A Sunday Morning radio program.

Biographical data, major works, musicological development, recommended CDs, books, and sheet music, bibliography, and links to biographical essays from Dr. Estrella's Incredibly Abridged Dictionary of Composers.

Notes scant biography as provided by Anonymous IV, tracing his relationship to Leonin and his own contributions to polyphony. Recordings containing his works are listed.