Beethoven — 32 Sonatas, Composing Past the Limits of the Instrument

Beethoven — The “New Testament” of Piano Music

Ludwig van Beethoven (1770–1827) was born in Bonn, Germany and worked in Vienna. Building on the Classical era of the previous article, he became the decisive figure of the bridge to Romanticism.

He is nearly a contemporary of Gauss (1777–1855) from the previous [Lineage of Mathematics] series. The mathematical “prince” and the musical “titan” lived through the same early 19th century.

His 32 piano sonatas, 5 piano concertos, and variations and small pieces completed the core of piano music by one hand. If Bach’s Well-Tempered Clavier is called the “Old Testament,” Beethoven’s 32 sonatas are called the “New Testament” (Hans von Bülow, 19th century).

Life — In Three Periods

Early Period (1770–1802, First Vienna Period)

• Mid-December 1770 — Born in Bonn (16 December is the likely date)
• 1787 — At 17, briefly meets Mozart in Vienna (tradition holds that Mozart said “keep an eye on this young man”)
• 1792 — Moves permanently to Vienna at 22; studies with Haydn
• 1795 — Debut as pianist; gains aristocratic patronage
• c. 1800 — First signs of deafness

Middle Period (1802–1815, the “Heroic” Period)

• 1802 — The Heiligenstadt Testament — despair at his deafness, briefly considers suicide
• 1804 — Third Symphony (Eroica); dedicates it to Napoleon, then tears out the dedication when Napoleon is crowned Emperor
• 22 December 1808 — Fifth and Sixth Symphonies, Fourth Piano Concerto premiere on the same evening
• 1814 — Congress of Vienna; Beethoven is a hero of the age

Late Period (1815–1827)

• c. 1815 — Total deafness; conversation books
• 1818 — Hammerklavier Sonata
• 1823 — Diabelli Variations, Missa Solemnis
• 7 May 1824 — Premiere of the Ninth Symphony. Deaf, Beethoven cannot hear the applause; the soloist turns him to face the audience so he can see their frenzy
• 26 March 1827 — Dies in Vienna at 56. 20,000 in the funeral procession

Deafness — A Handicap from His Twenties

Beethoven’s deafness progressed gradually from his late twenties:

• c. 1800 — High frequencies become hard to hear
• 1802 — The Heiligenstadt Testament
• 1810s — Loses the middle range too
• c. 1815 — Almost total deafness
• 1820s — Communicates in writing through conversation books (Konversationshefte)

In the extreme situation of “a musician losing his ears,” he still wrote the Ninth Symphony, the late string quartets, the Hammerklavier Sonata, and the Diabelli Variations — some of the greatest works in the entire canon.

His fully internal ear allowed him to compose in his head. A close parallel to Euler (blind in both eyes) from the previous [Lineage of Mathematics] series — an example of creation that transcends disability.

32 Piano Sonatas — A Lifetime Cycle in Three Periods

Beethoven’s 32 piano sonatas (Op. 2 to Op. 111) were written across his entire career — the largest single body of piano music.

Early (1795–1800)

Descended from Mozart and Haydn’s Classical style, but larger and more independent.

• Sonata No. 8 in C minor, Op. 13 (1798) — the Pathétique, with its slow introduction, deep sorrow and passion
• Sonata No. 14 in C-sharp minor, Op. 27 No. 2 (1801) — the Moonlight (subtitle from later tradition); serene first movement, storm-tossed finale

Middle (1801–1814)

More dramatic and large-scale — the heroic style.

• Sonata No. 21 in C major, Op. 53 (1804) — Waldstein, with its brilliant opening and vast coda
• Sonata No. 23 in F minor, Op. 57 (1805) — Appassionata, the ultimate minor-key passion
• Sonata No. 26 in E-flat major, Op. 81a (1810) — “Das Lebewohl” (“Farewell”), the three movements titled “Farewell, Absence, Reunion”

Late (1816–1822)

Free experiments with form and harmony. Bach-like counterpoint, expanded variations, and mystical depth.

• Sonata No. 28 in A major, Op. 101 (1816) — the beginning of the late style
• Sonata No. 29 in B-flat major, Op. 106 (1818) — the Hammerklavier, 45 minutes long, huge fugue, one of the most difficult piano works in the world
• Sonata No. 30 in E major, Op. 109 (1820) — a variation finale, heavenly
• Sonata No. 31 in A-flat major, Op. 110 (1821) — arioso and fugal resurrection
• Sonata No. 32 in C minor, Op. 111 (1822) — the last sonata; only two movements — “music leaving the earth”

The Hammerklavier Sonata Op. 106 — At the Limit

Sonata No. 29 in B-flat major, Op. 106, the Hammerklavier, is among the most difficult piano works ever written:

• Duration — 45–50 minutes (Beethoven’s longest)
• Movement 1 — a huge sonata form
• Movement 2 — a short scherzo
• Movement 3 — a 20-minute Adagio — “deep sorrow”
• Movement 4 — an extremely complex three-voice fugue

“Hammerklavier (Hammer-keyboard)” simply means piano in German (“keyboard with hammers”). Beethoven pointedly used the German term in his late works.

Modern performers who take it on include Pollini, Richter, Brendel, Uchida Mitsuko, Fujita Mao. The ultimate touchstone.

The Five Piano Concertos

Beethoven’s five piano concertos are, with Mozart’s 27, the summit of the Classical concerto:

No.	Key	Year	Note
1	C major, Op. 15	1795–1801	The young Beethoven himself as soloist
2	B-flat major, Op. 19	1787–1798	Actually written earlier than No. 1
3	C minor, Op. 37	1800–1803	A minor-key masterpiece, modeled on Mozart’s K. 491
4	G major, Op. 58	1805–1806	A serene opening — an innovation, the piano begins
5	E-flat major, Op. 73	1809–1811	The Emperor, grand and symphonic

The “Emperor” Concerto

Piano Concerto No. 5 in E-flat major, Op. 73, the Emperor (a subtitle not given by Beethoven), premiered in Leipzig on 28 November 1811. Beethoven himself, now deaf, did not play; his pupil Friedrich Schneider was the soloist. From then on Beethoven no longer performed his own concertos.

Choral Fantasy, Op. 80 (1808)

The Choral Fantasy for piano, chorus, and orchestra is a prototype of the “Ode to Joy” of the Ninth Symphony. Premiered at the same concert as the Fifth and Sixth Symphonies on 22 December 1808. It opens with solo piano and gradually adds instruments and chorus — an unusual structure.

The Diabelli Variations, Op. 120 (1823)

When the publisher Anton Diabelli planned to have 50 Austrian composers each write a variation on one of his waltz themes, Beethoven produced 33 variations of his own.

• A vast 50-minute variation set
• Beethoven philosophically deepens Diabelli’s simple waltz
• Together with Bach’s Goldberg, the summit of variation form
• Modern performers: Brendel, Serkin, Uchida, and others

Bagatelles — The Short Pieces

Beethoven also wrote short pieces (Bagatelles). The Six Bagatelles, Op. 126 (1824) — his last piano work, just six pieces totaling 15 minutes — are held in deep esteem as “Beethoven’s final piano music.”

Für Elise (WoO 59) was found only later — one of the world’s most famous piano pieces, though Beethoven never published it himself. The identity of “Elise” is disputed; Therese Malfatti is the leading candidate.

Beethoven’s Pianos

Beethoven used pianos from several makers through his life:

Viennese (Young Beethoven)

• Anton Walter (same as Mozart)
• Anton Graf
• Light touch, clear sound

Broadwood (from 1817)

• In 1817 the London firm Broadwood presented a 6.5-octave piano
• Heavier touch, greater volume
• The deaf Beethoven could still feel the loud dynamics
• The instrument now survives at the Hungarian National Museum, having belonged to Liszt

Érard (French, c. 1803)

• Presented by Érard
• Wider compass (5.5 octaves)
• The Waldstein Sonata was written with this instrument in mind

Beethoven’s piano writing continually pushed the instrument beyond its limits. Expanded range, greater volume, more complex chords — the makers were always trying to catch up.

Metronome Markings — The Recording of Tempo

Around 1815 Mälzel invented the metronome. Beethoven eagerly adopted it and became one of the first composers to write metronome markings in his scores:

• Ninth Symphony — metronome markings on every movement
• Applied to many symphonies and string quartets

That said, his markings tend to be faster than modern performances — the debate over whether that reflects deafness, an inaccurate early metronome, or something else continues today.

Beethoven’s Pupils and Successors

Beethoven had few formal pupils, but his influence is enormous:

• Carl Czerny (1791–1857) — a direct pupil, famous piano teacher (Czerny’s exercises). Czerny’s pupil was Liszt — a three-generation line “Beethoven → Czerny → Liszt → d’Albert, Rosenthal”
• Ferdinand Ries (1784–1838) — pupil and secretary
• Anton Schindler (1795–1864) — secretary and Beethoven’s earliest biographer (though later research has exposed many fabrications)

Modern Beethoven Pianists

“You cannot call yourself a pianist without Beethoven” — the professional consensus:

• Artur Schnabel (1882–1951) — the first 20th-century complete cycle of the 32 sonatas
• Wilhelm Backhaus (1884–1969) — a weighty German Beethoven
• Wilhelm Kempff (1895–1991) — a poetic Beethoven
• Claudio Arrau (1903–1991) — Chile; a deep Beethoven
• Emil Gilels (1916–1985) — Soviet Union; incomplete cycle
• Alfred Brendel (1931–) — three complete cycles
• Maurizio Pollini (1942–2024) — Italy; famous for the late sonatas
• Daniel Barenboim (1942–) — directing from the keyboard
• András Schiff (1953–) — complete cycle plus lecture series
• Uchida Mitsuko (1948–) — the depth of the late sonatas
• Igor Levit (1987–) — a young generation’s complete cycle

Every generation’s leading pianist takes on the 32 sonatas — the lifelong task of a pianist.

Modern Impact

The “Summit” of Piano Music

The 32 sonatas, 5 concertos, and variation sets are the most important piano works in the classical repertoire. They occupy the center of concert life, piano pedagogy, and the record industry.

Impact on Instrument Making

Beethoven’s demands for wider compass and greater volume pushed Broadwood, Érard, and later Steinway to develop their instruments.

The Birth of “Heroic Music”

From Beethoven on, the Romantic idea that “music expresses the individual’s passion, struggle, and victory” is established. A direct influence on Chopin, Liszt, Wagner, Mahler.

From This Article to the Next

We have surveyed Beethoven’s piano music. The next article turns to Frédéric Chopin (1810–1849) — “the poet of the piano.” Born in Poland, active in Paris, ballades, scherzos, mazurkas, polonaises, nocturnes, études, preludes — nearly all his output is for the piano, a rare kind of composer. We will follow his short life ending in tuberculosis at 39, his relationship with George Sand, and the completion of Romantic pianism.