K. 1b Allegro in C
볼프강 아마데우스 모차르트 작
A Musical Household in Salzburg
In the late 1750s, the Mozart household in Salzburg was buzzing with music. Father Leopold Mozart was a professional musician and composer, and he made the family home a training ground for his children.
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Wolfgang’s older sister, Maria Anna “Nannerl” Mozart, began clavier lessons at age seven, and the three-year-old Wolfgang eagerly watched. As Nannerl later reminisced, little Wolfgang would sit by the keyboard “picking out thirds” (chords) and smiling at the pleasing sounds. Seeing the boy’s enthusiasm, Leopold started teaching him small pieces “for a game” when Wolfgang was four – and found that the child could play them flawlessly, keeping strict time.
By the time Wolfgang turned five, he was not only playing music but also making up his own little melodies, which he played to his father, who dutifully wrote them down.
Daily life in the Mozart home thus often revolved around the clavier, with Wolfgang absorbing music like a sponge from the very start.
Early Signs of Genius
Mozart’s precocious talent did not go unnoticed by those around him. Family friends marveled at the boy’s focus – once Wolfgang became absorbed in music, “his mind was as good as dead to all other concerns,” as the family friend Johann Schachtner recalled in a letter.
Even playtime turned into make-believe concerts: Wolfgang would march around with his toys only if someone sang or played along in time.
He also learned new pieces with lightning speed (Leopold noted one minuet was learned in just a half hour on one late evening).
Perhaps the most famous anecdote of young Mozart’s genius is the “concerto” incident. One day, Leopold and Schachtner found four-year-old Wolfgangerl intently scrawling notes on paper. At first, the scribbles looked like messy ink blots. “We laughed at this apparent nonsense,” Schachtner admitted – until Leopold studied the music more closely. The notes were placed correctly and coherently on the staff; the child was attempting to compose a keyboard concerto far beyond normal toddler fare. Leopold was astonished, reportedly moved to “tears of wonder and delight” on seeing how orderly the piece was – though he exclaimed it was “so extraordinarily difficult that no one in the world could play it.” Unfazed, little Wolfgang piped up that “that is why it is a concerto; it must be practised till it is perfect”, showing that he already understood practice makes perfect.
Such stories spread the idea that Wolfgang was no ordinary child – he was a Wunderkind, astonishing all who heard him with musical ability well beyond his years.
The First Piece K. 1b Comes About
In 1761, not long after his fifth birthday, Wolfgang composed his first small keyboard pieces at home. Leopold kept a notebook for Nannerl’s music exercises (the Nannerl Notenbuch), and it was in these pages that Wolfgang’s earliest compositions were preserved. According to Leopold’s own jotted notes, his son composed an Andante in C (K. 1a) and an Allegro in C (K. 1b) “in the first three months after his 5th birthday.”
Leopold wrote the music down since Wolfgang was too young to notate cleanly himself, but the creative ideas were the boy’s.
The Allegro in C major, catalogued later as K. 1b, was thus born in a casual family setting – essentially as a musical doodle by a five-year-old, captured by an attentive father. (There has been some debate among scholars whether Mozart might actually have been only four at the very start of these efforts, but consensus is that he had turned five.)
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This Allegro and its companion pieces were extremely short, simple works that likely grew out of Wolfgang’s keyboard improvisations during lessons. Leopold’s records show that young Mozart practiced pieces by other composers in the notebook, and then tried his hand at making his own.
A Peek Inside the Allegro in C Major
Though only twelve measures long, the Allegro in C major (K. 1b) gives a charming glimpse of Mozart’s budding musicality.
As the title “Allegro” suggests, it’s a bright, fast-paced piece in the cheerful key of C. Unlike the even simpler Andante K. 1a (which was built from repeated little phrases), K. 1b is slightly more developed.
It opens with an energetic gesture: the right hand plays an ascending C-major scale fragment (from G up to E) on the strong beats, while the left hand hops along with a simple counter-melody on the off-beats. This creates a playful call-and-response between the hands.
After climbing to a peak, the music tumbles down in a series of steady quarter-notes and eighth-notes. The left hand accompaniment remains rudimentary – likely all Wolfgang’s small fingers could manage – but it keeps the harmony grounded. Interestingly, the final cadence (the musical “period” at the end of a phrase) arrives surprisingly early, by about measure 8.
The last few bars are basically young Mozart playing with a plain C major chord in different patterns, as if delighted by that pure sound.
The whole piece is over in a half-minute, ending with a simple authentic cadence (a resolute C major resolution).
In modern performances it’s usually played on a harpsichord, echoing the instrument Wolfgang knew.
By analytical standards, K. 1b is of course a very rudimentary composition – yet it is logical and catchy in its own tiny way. The little Allegro makes a clear musical statement and doesn’t overextend its ideas, a hint of the concision that would later characterize Mozart’s music.
Later Reflections on Mozart’s First Notes
For a long time, K. 1b and the other earliest pieces were regarded as mere curiosities – adorable products of a child prodigy. It wasn’t until the 19th century that biographers scrutinized them for signs of Mozart’s genius.
Otto Jahn, in his 1856 book Life of Mozart, noted that one “cannot look for originality” in such infant efforts (after all, young Wolfgang was imitating the little dances and songs he heard).
Yet Jahn was impressed that these first compositions already showed Mozart’s instinct for “simple melody and rounded form,” with no trace of childish nonsense or random banging on keys. In other words, even at five, Mozart composed with a certain grace and musical sense that belied his age.
Later scholars have echoed that assessment. While the Allegro in C major K. 1b is not a profound work, it is a historical marvel: a snapshot of musical creativity just beginning to blossom.
Modern Mozart experts point out that Leopold’s teaching and guidance were crucial – he taught Wolfgang how to construct a melody and harmony – but the boy still had to supply the ideas and the ears to make it musical. The fact that K. 1b is short yet coherent underscores that Mozart’s talent was innate, guided but not created by his father.
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Today, general audiences and music lovers often encounter K. 1b as a footnote in Mozart’s story (or hear it performed as a novelty by young pianists), but it remains a delightful testament to the dawn of a genius.
In a few bars of a simple C major Allegro, the Mozarts’ domestic musical life was captured – a father’s care, a sister’s inspiration, and a little boy’s extraordinary gift, already shining through the notes.