A Composer's Notes: Philip Glass and the Making of an Opera, is a stunning documentary released in 1986 that offers viewers an intimate look into the life and work of the world-renowned contemporary composer Philip Glass, known as the grand patriarch of modern minimalist music. Directed by Peter Greenaway, this film goes above and beyond the standard biography, providing a profoundly personal and penetrative exploration of Glass's unique and influential approach to musical composition.

The film is centered around the making of Glass's opera 'Akhnaten', a three-act opera based on the life and religious convictions of the Egyptian pharaoh Akhenaten. Glass's 'Akhnaten' is the third part of his "Portrait Trilogy" of operas about pivotal, influential figures in history, following Einstein on the Beach and Satyagraha.

In A Composer's Notes, Greenaway pairs unscripted interviews, personal footage, and explorations of Glass's process during the creation of 'Akhnaten', resulting in a documentary that provides insight not only into the making of an ambitious opera but also into the mind of one of the most significant musical innovators of the 20th century.

The film features appearances by Constance DeJong, John DeMain, and Richard Einhorn – all essential collaborators in the creation of 'Akhnaten'. Constance DeJong, a long-time collaborator and librettist for Philip Glass, provides invaluable insight into the conceptualization and literary elements of the opera. In contrast, John DeMain, an esteemed conductor, and music director provides an understanding of the musical aspect and intricacies. Richard Einhorn, a composer and record producer, offers unique perspectives on the recording and production of the opera.

Throughout A Composer's Notes, Greenaway fascinates us with behind-the-scenes moments, where we catch a glimpse of Glass's thoughts on the creative process, the rigors and tensions during the rehearsals and performances, and the mesmerizing synergy between Glass and his collaborators.

In one striking scene, we witness Glass, sitting at his piano, delving into the challenges of modern music and the issues surrounding its acceptance among critics and audiences. Here, both the honesty and passion shine through, providing a sense of the commitment and drive behind his pioneering work. Another notable section includes footage from the impactful premiere of 'Akhnaten' at the Stuttgart State Opera, a moment that would help solidify Glass’s reputation worldwide.

The documentary also dives into Glass's personal life, giving the audience a fascinating dichotomy of the artist's hectic professional life and his tranquillity at home. The contrast between the reflective philosopher and the hands-on working composer makes for compelling viewing, offering a rich context within which to evaluate and understand his work.

For those familiar with Philip Glass's work, the documentary provides a rare and rewarding insight into his methodologies and inspirations. For those unfamiliar or less acquainted with his music, it serves as an inviting introduction to a composer who has repeatedly pushed the boundaries of contemporary classical music.

A Composer's Notes is also a treat for film and documentary enthusiasts with its raw cinematic style characteristic of Greenaway. The choice of black-and-white footage for certain sections of the film adds another layer of visual intrigue, while the potent insertion of abstract images interspersed with the interviews propels the narrative and embodies the experimental spirit of Glass's music.

In terms of music, the film is a feast for the ear – it features abundant music from Glass's oeuvre, including some exclusive performances. A viewer finds themselves mesmerized not only by Glass's performances, original recordings, and in-depth analysis of his work but also his discussions about the fundamental philosophy of sound and music.

In conclusion, A Composer's Notes: Philip Glass and the Making of an Opera is not just a documentary about a brilliant contemporary composer. It's also an engaging exploration of the process of artistic creation, the intersection of life and art, and the ever-compelling push and pull between tradition and innovation. For anyone interested in music history, the world of opera, or the creative process, this film is a must-watch.