What is a Sul Tasto?

Sul tasto is a string playing technique in which the performer bows the string over the fingerboard rather than near the bridge. The term comes from Italian and means “on the fingerboard.”

When the bow is placed over the fingerboard, the sound becomes softer, warmer, and more airy than normal bowed playing. This happens because the string vibrates more freely in that area, producing fewer strong overtones and a more delicate tone.

Sul tasto is commonly used in orchestral and chamber music to create gentle, atmospheric textures or to soften the sound of the string section. Composers often contrast sul tasto with sul ponticello (bowing near the bridge), which produces a much brighter and more intense tone.