Sul ponticello
Bow close to the bridge for a thin, bright, metallic colour
Related
Sul ponticello means bowing very close to the bridge. There the bow excites the string at a point that favours higher harmonics: the fundamental weakens and the upper partials come forward, so the sound thins, brightens and takes on a metallic, even gritty, edge; composers often combine it with tremolo for tension or the uncanny.
What changes is the spectrum, not the volume. The usual mistake is to hear sul ponticello as a mute or a "quiet effect": it can be loud and piercing; the contact point, not a device on the instrument, is what makes the colour. Near the bridge the bow pressure should not be too heavy, or the sound turns scratchy.
Sources
- sul ponticello 的弓位与音色，参 The New Grove Dictionary of Music and Musicians, "Sul ponticello"；本文为原创表述
Used for fact-checking only; all prose is original.