The small numbers above the notes are the least glamorous part of printed music and the one beginners most often ignore. Then a passage that looks easy refuses to work, and the reason is almost always those numbers.
This guide covers how the numbering works, why printed fingering exists, and the two situations where you should follow it and where you can change it.
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Piano finger numbers: how fingers are numbered
Both hands use the same numbers. Thumb is 1, index finger 2, middle finger 3, ring finger 4, and little finger 5. Your left hand's thumb is still number 1, even though it sits on the right side of that hand.
That symmetry is the point. A piece printed for both hands uses numbers that mean the same thing on either side, so a passage marked 1-2-3-4-5 means the same shape regardless of which hand is playing it. Beginners who expect left-hand numbering to mirror the hand end up reading the printed fingering backwards.
Where you see no number, the fingering is either obvious from the pattern or intended to continue from the last number given. Publishers mark the starting finger and the places where the hand has to move, and leave the middle of a phrase alone rather than numbering every note.
Why does fingering matter?
Because the wrong fingering makes an easy passage hard.
Because the wrong fingering turns an easy passage into a hard one, and the difficulty only appears once you try to play it at tempo.
Fingering exists to do three things: keep the hand in a comfortable position, make the notes reachable in sequence without an awkward jump, and prepare the hand for what comes next. A fingering that satisfies the first two and ignores the third is what produces the passage that works slowly and falls apart faster.
The link to scales is direct. Scale fingerings exist because thumb crossings solve the problem of running out of fingers, and a piece that uses a scale fragment inherits that solution. Practising scales, as set out in piano scales for beginners, is largely practice at making the printed fingering automatic.
When should you change the printed fingering?
When your hand genuinely cannot reach.
When your hand genuinely cannot reach the interval, and then only once: choose the alternative, write it down and keep it consistent afterwards.
Two cases justify a change. A hand span that makes the printed fingering physically uncomfortable is the first, and the adjustments for that are covered in best piano for small hands. The second is when a piece repeats the same figure many times and one alternative fingering makes all the repetitions consistent.
What does not justify a change is convenience. The fingering that feels easiest in the first week is often the one that makes the third week harder, because it was chosen for the notes in front of you rather than the notes coming next. Beginners who invent their own fingering end up rebuilding it later, which costs more time than following the print would have.
How to practise fingering
Slowly enough to notice, and consistently enough that it becomes automatic. Play the passage at a tempo where you can watch which finger lands on which note, and keep a pencil nearby for the two or three places where you have decided to differ from the print.
Marking your own changes is worth doing properly. Write the number above the note, and once you have settled on it, keep it. A passage with a fingering you change every session never becomes fluent, because the hand is solving the problem afresh each time rather than building the pattern.
Two supporting habits help. Play the passage hands separately until each hand's fingering is decided, then combine, since changing fingering after the hands are together is far harder. And when something feels awkward, check the print before assuming the problem is your hand: the printed fingering was chosen for a reason, and the reason is often two bars ahead. Reading fluently makes this much easier, and the order to learn that in is covered in how to read piano sheet music.
What about the fourth and fifth fingers?
They are weaker for everyone, for anatomical reasons.
They are weaker for everyone because of the tendon arrangement in the hand, so the fix is slow relaxed playing rather than force or extra stretching.
The ring finger shares a tendon arrangement with its neighbours, which limits how independently it can move, and no amount of exercise changes that.
What does change is how well you use them. The useful practice is slow playing that keeps the hand relaxed, letting the fourth finger move as far as it comfortably can rather than forcing it. Pieces that lean on those fingers respond to patience rather than force, and forcing them is one route to the hand discomfort described in the NHS material on repetitive strain injury.
Three habits protect the hand while the fingering settles. Sit at a height where the forearm is level with the keys, keep the wrist neutral rather than dropping it, and stop when the hand starts to grip. The measurements for the first are in the piano bench height guide, and the general principle is the same one the Canadian Centre for Occupational Health and Safety describes for seated work and the Health and Safety Executive applies to musicians. Keep headphone levels sensible too, the practical form of the NIDCD guidance on hearing loss and the WHO listening-safety programme.
FAQ
What do the numbers above piano notes mean?
They are finger numbers: 1 is the thumb of each hand and 5 is the little finger, used identically in both. Where no number appears, the fingering either continues from the last one printed or follows the obvious pattern for the position your hand is in. They exist to keep the hand prepared for what comes next rather than only for the notes in front of you, which is why ignoring them often creates a problem several bars later. Read them before you play, not while you are playing.
Do you have to follow the printed fingering?
Mostly yes, because the numbers were chosen to place the hand so the following bars work, not just the bar you are reading. There are two legitimate reasons to change them: your hand genuinely cannot reach the interval, or a repeated section works better with a consistent pattern. In both cases change it once, write it on the page and keep it, because a fingering you alter every session never becomes automatic. The hand will simply be solving the same problem from scratch each time.
Why are the fourth and fifth fingers so weak?
Because of the way the tendons that move them share connections with their neighbours, which limits how independently they can move, and that is true for every player regardless of practice. What does change is how well you use them: slow playing that keeps the hand relaxed lets the fourth finger travel as far as it comfortably can, while forcing it invites the tension that causes discomfort. Professional players have the same anatomy; they simply organise the hand better around it. Give those fingers time rather than force.
Next step
Take the passage that keeps failing and check the printed numbers before assuming your hand is the problem. Following them, and writing down the two places where you deliberately differ, is the cheapest fix available.
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See the keyboards and app that mark a missed note so fingering problems surface early.
For the exercise that makes printed fingering automatic, see piano scales for beginners.
