calando
Gradually decreasing in both tempo and volume.
In Depth
Calando combines two effects at once: the music gets both softer and slower simultaneously. The word comes from the Italian calare, meaning to lower or decrease. It creates a natural winding-down effect, as if the music is settling into stillness.
Calando is distinct from diminuendo (volume only) and rallentando (tempo only) because it encompasses both. Composers use it at the end of sections or pieces when they want a gradual fading away. The effect can be deeply expressive, suggesting exhaustion, peace, or the quiet resolution of tension.
Calando appears at the end of Chopin's Ballade No. 1, where the music literally dissolves after the tempestuous coda — one of the most dramatic uses of the marking in the piano repertoire.