Slow cluster glissando
Also called Rolling Surf effect by Salzedo.[Lawrence/Salzedo 1929]
Production
The harpist holds his/her hand open and horizontal and slides the four fingers and the thumb slowly and repeatedly across the strings.
Sound
A slow cluster glissando creates a sound cluster of slow, multiple glissandi.
Notation
A slow cluster glissando is notated with an interval, an arrow and a repeated arpeggio sign. The arrow shows the direction of the glissando. Beginning and end notes are normally not played, the interval merely shows the span of the sliding fingers.
![Slow cluster gliss](/media/slowclustergliss.png)
Slow cluster glissando.
Range
The whole harp