The harp does use the squiggly line for a strum, sometimes with an arrow up or down. But that is a vertical symbol. It's for a concise arpeggio, not separated enough to notate, and not a glissando.
The harp does use the squiggly line for a strum, sometimes with an arrow up or down. But that is a vertical symbol. It's for a concise arpeggio, not separated enough to notate, and not a glissando.