> ## Content Index > Fetch the complete content index at: https://music.johncavicchio.com/llms.txt > Use this file to discover other available public pages before exploring further. # Lesson 7: Great Organs and the Composers Who Wrote for Them - URL: https://music.johncavicchio.com/lesson-7-great-organs-and-the-composers-who-wrote-for-them/ - Published: 2026-10-01T22:03:00.000Z - Updated: 2026-10-12T21:55:01.000Z - Description: Explore some of the world’s great pipe organs and the composers who shaped their sound—from Bach and Franck to Messiaen and today’s musicians carrying the tradition forward. - Author: John Cavicchio - Tags: guide A pipe organ is more than an instrument. It is also part of a place. Unlike a violin, piano, or trumpet, a large pipe organ usually doesn't travel from one concert hall to another. It is designed for a particular building, installed there, and shaped in part by the acoustics of that space. That's why organists don't simply talk about organ music. We also talk about **organs**. Some instruments have become famous in their own right. ### **Notre-Dame Cathedral — Paris** Few settings are more closely associated with the grandeur of the pipe organ than a great cathedral. The organ of **Notre-Dame Cathedral in Paris** is among the world's most famous. Its history stretches across centuries, with generations of builders, musicians, and composers contributing to the instrument we know today. The original Listener's Companion points to the organ and the cathedral's remarkable acoustics as part of its enduring importance. Imagine hearing organ music in a space of that scale. The building doesn't merely contain the sound. It becomes part of it. Notes travel through an enormous interior, reverberate from stone surfaces, and linger after the organist has released the keys. Remember our listening lesson? **Listen to the room.** This is why. ### **The Wanamaker Organ — Philadelphia** Now let's move from a cathedral to someplace rather unexpected: **a department store.** Philadelphia's famous **Wanamaker Organ** demonstrates just how far the pipe organ can travel beyond its traditional church setting. The original Companion identifies it as the world's largest functioning pipe organ, containing more than 28,000 pipes. More than 28,000. Think about that for a moment. We've already learned that pipes come in different sizes, pitches, and tonal families. Now imagine assembling tens of thousands of them into a single musical instrument. The result isn't simply loudness. It's an extraordinary range of possibilities. ### **Sydney Town Hall — Australia** Another celebrated instrument can be found in **Sydney Town Hall**. Its organ is particularly famous for its enormous 64-foot Contra-Trombone stop, producing extraordinarily low tones. And this gives us another useful listening lesson. Some organ sounds aren't experienced only through our ears. Very low frequencies can become almost physical. You may **feel** the organ as well as hear it. ### **Then There Are the Composers** Of course, an extraordinary instrument needs extraordinary music. And few names loom larger in the organ world than **Johann Sebastian Bach**. Bach's organ music includes preludes, fugues, chorale settings, and some of the most enduring works in the repertoire. His music can reveal the independence of different musical lines particularly clearly—the hands and feet sometimes seeming to carry on several conversations at once. If you're beginning to explore organ music, Bach is almost impossible to avoid. That's a very good thing. ### **César Franck — The Organ Becomes an Orchestra** Jump forward to nineteenth-century France and we encounter **César Franck**. By Franck's time, organ building had changed dramatically. Instruments could offer an increasingly orchestral range of color, and composers responded by writing music that took advantage of those possibilities. Franck's works are especially associated with expressive, richly colored Romantic organ writing. This is where everything we've learned about registration becomes especially useful. Listen for changing colors. Listen for gradual growth. Listen for the way one group of sounds gives way to another. The organ isn't merely accompanying the composition. Its colors are part of the composition's emotional world. Eddie Zheng - Toccata, Charles-Marie Widor (Cavaille-Coll Organ of Saint-Palais) ### **Olivier Messiaen — A Different Sound World** Then we come to **Olivier Messiaen**. If Bach and Franck show us two very different possibilities for the organ, Messiaen takes us somewhere else again. His music is known for unusual harmonies, distinctive rhythms, striking registrations, and deep religious inspiration. For a new listener, Messiaen may sound surprising. That's perfectly fine. You don't have to understand everything immediately. Remember Lesson 6: **Listen first.** What colors do you hear? What happens to the sound? What catches your attention? Curiosity is enough. ### **The Organ Didn't Stop With the Classics** The organ's repertoire continues well beyond Bach, Franck, and Messiaen. The original Listener's Companion also points toward contemporary composers and performers who continue exploring what the instrument can do. That's important because the pipe organ can sometimes be treated as though it belongs entirely to the past. It doesn't. The instrument may have an ancient history, but musicians are still discovering new things to say with it. Isabelle van Resnburg - Toccata on 'Nun danket alle Gott' (Hommage a Charles-Marie Widor) **Every Organ and Every Composer Offers Another Door** This is one of the pleasures of becoming an organ listener. You can follow the **music**. You can follow the **composer**. Or you can follow the **instrument**. Perhaps Bach leads you to historic German organs. Perhaps Franck leads you toward the great French instruments. Perhaps hearing about the Wanamaker Organ makes you curious about enormous American concert organs. One discovery leads naturally to another. And you don't have to become an expert. You simply have to keep listening. We've now traveled through more than two thousand years of organ history, looked inside the instrument, explored its colors, learned how to listen, and met some of its remarkable instruments and composers. So before we finish our journey, let's have a little fun. Because after more than two thousand years, the King of Instruments has accumulated some pretty good stories.