Rubato

Rubato is one of the most subtle and fundamental concepts in expressive performance. The literal Italian meaning is ‘stolen’ — and the technique is exactly that: the performer takes time from one beat or phrase, slowing slightly, and gives that time back later by speeding slightly. The overall pulse remains stable, but the local tempo flexes expressively.

There are two historical traditions of rubato. The earlier ‘Chopin rubato’ involves the melody shifting freely against a steady accompaniment — the right hand sings expressively while the left hand keeps strict time. This is sometimes called ‘rhythmic rubato’ or ‘melodic rubato’. The later ‘structural rubato’ involves the entire texture flexing together, as in Brahms or Liszt — the whole orchestra slows and speeds as one.

Rubato is essential to Romantic style and remains central to expressive performance today. Without it, music sounds metronomic; with too much, it sounds aimless. The skill lies in calibration — knowing when to take time and how much, and always paying it back so the larger pulse holds.

Italian, past participle of rubare (‘to steal’), from Old High German roubon (‘to rob’). Compare English robbery.

Pay back what you steal. If you slow into a high note, accelerate slightly out of it. The total time across a phrase should remain roughly constant. Listen to great recordings — Cortot, Rubinstein, Horowitz — for models of how rubato works in practice.