Did AI Successfully Finish Schubert’s ‘Unfinished Symphony’?

Franz Schubert’s Symphony No. 8 makes its mark with only two completed movements, but attempts have been made to write a final movement.
Did AI Successfully Finish Schubert’s ‘Unfinished Symphony’?
Franz Schubert and his "Unfinished Symphony" may finally get closure through modern technology. (Public Domain)
4/5/2024
Updated:
4/9/2024
0:00

Life is always an unfinished business. This is obviously truer for some than others. When people are cut down in their prime, an unanswerable “What if?” always hovers over them.

Like his English contemporary the poet John Keats, Franz Schubert led a brief, impoverished, and unappreciated life of wild creativity. Dying young within a few years of each other (Keats in 1821, Schubert in 1828), they each left an indelible mark on their field and are now considered among the greatest practitioners of their art forms.

"Franz Schubert," 1875, by Wilhelm August Rieder. (Public Domain)
"Franz Schubert," 1875, by Wilhelm August Rieder. (Public Domain)

German music journals favorably reviewed some of Schubert’s piano pieces and songs during his lifetime. These were much akin, however, to the minor notices that a struggling author receives. They made little impression on the wider musical community. While Schubert did manage to give one public concert of his works during his final year of life, scholars and critics surveying the German musical scene never mentioned him. This obscurity persisted for decades after his death.

Today, Schubert has left his more successful contemporaries in the dust and is appreciated in the manner he deserves. Among so many works admired in his large oeuvre, the most famous is probably his “Unfinished” Symphony No. 8 in B minor. Aside from the greatness of the piece itself, its popularity partly has to do with the puzzle surrounding it.

Why Is the Eighth Symphony Unfinished?

A prodigy like Mozart, Schubert composed his first five symphonies before the age of 20. The incomplete Symphony No. 8 followed five years later.

Why Schubert never finished it has remained a mystery for music scholars and connoisseurs. One possible reason put forth is that he may have realized there was little chance of his work being performed and that he became discouraged. Since Schubert later completed a ninth symphony, however, this explanation seems an unlikely one. Great artists follow their impulse to create, regardless of how the world reacts.

Technically, Schubert  had two “other” unfinished symphonies. He never finished orchestrating his Symphony No. 7 in E major, and he began writing a 10th symphony a few weeks before he died. What sets the officially titled “Unfinished” Symphony No. 8 apart is that the first two movements were completed.

Schubert began writing a third movement, a scherzo, but then abandoned it. Since this movement is poorer in quality than the first two, it seems likely that Schubert felt he could not outdo them. Classical music aficionados have speculated that he might have returned to the work if he had lived, as Mendelssohn did when he composed “A Midsummer Night’s Dream” in two creative bursts 16 years apart.

Schubert's Symphony No. 8 in B minor, 1885, in J.R. von Herbeck’s biography. (Public Domain)
Schubert's Symphony No. 8 in B minor, 1885, in J.R. von Herbeck’s biography. (Public Domain)
For the remaining six years of his life, Schubert never returned to the work. In fact, in 1823 when Schubert joined the Styrian Music Society in Graz, he gave the manuscript away to the composer Anselm Hüttenbrenner. The score of the “Unfinished Symphony” remained in Hüttenbrenner’s possession for more than 40 years, and it was not performed until 1865. (Incidentally, the other thing that Hüttenbrenner is famous for in music history is being at Beethoven’s bedside when he died and preserving a lock of his hair).

What’s So Great About the ‘Unfinished Symphony’?

The “Unfinished Symphony” is larger in scale than Schubert’s earlier works, which reflect Mozart’s influence. The eighth contains, rather, shades of Beethoven. The themes of its two movements are highly memorable because Schubert weaved his symphonies with the melodic style he perfected in his songs.

The first movement, Allegro moderato, opens with a soft, haunting introduction in the string section, played by violoncellos and contrabasses. A solo clarinet and oboe then present the opening theme, a lyrical melody that uses woodwinds to sensuous effect in a way that previous composers did not.

The strings then introduce the movement’s second theme, written in the style of an Austrian country dance. The second melody’s gracefulness contrasts with the melancholy longing of the first theme.

The development and the concluding section, rather than focusing on these two themes, return the listener’s attention to the mysterious introduction of the opening measures, gradually swelling to include the full orchestra.

The second movement, Andante con moto, mirrors the first: A major-key first theme and minor-key second contrast with the Allegro’s minor-key first melody and major-key second. A sense of tranquility, with shadows of the ghostly first movement, pervade this slower sequel.

Both movements are essentially sonatas nested within the symphony. Such an intricate mirroring makes it questionable whether Schubert would have ever been able to craft another movement to match the spirit of this pair. He may have realized this when he abandoned the third Scherzo movement; three is a crowd.

Finishing the ‘Unfinished Symphony’ … Sort Of

Since Schubert’s death, various composers have written movements intended to conclude Symphony No. 8. On the centenary of Schubert’s death in 1928, Frank Merrick won a contest sponsored by the Columbia Gramophone Company with this intent. One can listen to an old recording of Merrick’s attempt today on the Internet Archive. Despite his best efforts, Merrick achieved what Schubert likely feared—that anything following upon the first two movements would savor of anticlimax.
More recently, composer Lucas Cantor collaborated with a Chinese tech company, Huawei, to complete Symphony No. 8—using artificial intelligence. Engineers fed data into the Neural Processing Unit of a Huawei Mate 20 Pro smartphone, which then generated melodies using the same key musical elements. Mr. Cantor orchestrated his preferred selections of the melodies. These third and fourth movements, along with Schubert’s original ones, were performed together on Feb. 4, 2019, at Cadogan Hall in London.

Listening to Mr. Cantor’s two AI-inspired movements, I admit they’re an improvement on Merrick’s attempt. The AI melodies, however, merely recombine several themes from Schubert’s movements, and the grandiose finale is too straightforwardly melodramatic, like the accompaniment to an inspiring but sentimental film. Instead of the intricate mirroring we see between the first and second movements, the third and fourth movements feel like parodies lacking inner drama.

All of these attempts at completion are forgettable and ultimately misguided. The only way anyone will ever know what a “Finished” Symphony No. 8 sounds like is if they meet Schubert in heaven. Since the two movements have a self-contained perfection to them, I’d like to think Schubert would say that the eighth is fine as it is.

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Andrew Benson Brown is a Missouri-based poet, journalist, and writing coach. He is an editor at Bard Owl Publishing and Communications and the author of “Legends of Liberty,” an epic poem about the American Revolution. For more information, visit Apollogist.wordpress.com.