When to Use the Sustain Pedal (and When to Put Your Foot Away)

Watch ten pianists play the same piece and you will see ten different approaches to pedalling. Some hold the pedal down continuously and blur everything together. Some barely use it and the music sounds dry. A few use it beautifully — and those are the ones who understand what it actually does.

What the pedal does

The sustain pedal — the right-hand one on every acoustic piano — lifts the dampers off the strings. When you play a note without the pedal, the damper sits back on the string as soon as you release the key, stopping the sound. With the pedal down, the damper stays lifted, so the string keeps vibrating even after you have moved your hand away.

This does two things. It sustains notes you have already played, and it allows all the undamped strings to resonate sympathetically, adding richness and warmth to the overall sound.

The most common mistake

Pressing the pedal down and leaving it there. This is what almost every self-taught pianist does, because it makes the piano sound fuller and more impressive. The problem is that every note you play gets mixed into every other note still sustaining from before. The harmony turns to mud.

Good pedalling means changing the pedal — lifting and pressing it again — at every harmony change. The technical term is "legato pedal" or "syncopated pedal": you press the pedal just after you play the new chord, so the old harmony stops and the new one sustains cleanly.

This takes practice. The foot has to move independently of the hands, which is initially awkward. Slow practice with careful listening is the only way to train it.

Listen, do not just press

The pedal is a listening tool. Your ears should tell your foot what to do. If the sound is getting cloudy, lift the pedal. If the line needs to connect across a big leap, use the pedal to bridge it. If a chord needs more warmth, add a touch of pedal.

The biggest improvement most pianists can make to their pedalling is simply paying attention to the sound they are producing. Most bad pedalling happens because the pianist is focused on the hands and not listening to the total sound.

When to put your foot away

Not every piece wants pedal. Most Bach and early keyboard repertoire was written for instruments that did not have a sustain pedal at all, and the counterpoint relies on each line being heard clearly. Heavy pedalling blurs the independence of the voices and makes the music sound wrong.

Fast, articulated passages — scales, repeated notes, dance rhythms — usually want little or no pedal. The clarity of articulation is part of the music.

And quiet, intimate music often works better with minimal pedal. The subtle dynamics get swamped by too much resonance.

A practical rule

If you are not sure whether to pedal, try the passage without it first. If it sounds bare, add a little. If it sounds fine, leave it alone. The pedal is there to enhance what is already good — it cannot rescue playing that is not musical to begin with.

The sustain pedal is a tool, not a requirement. Learning to use it well takes as long as learning the notes — and the difference it makes is worth every minute.

Want to improve your technique and musicality at the piano? Piano lessons are available in Telford and online — get in touch to find out more.