A wire brush (jazz brush) and various types of paint brushes can be used on the harp.
Nail brush, wire brush and paint brush.
Brushes are often used for playing tremolos or glissandi. They can also be used to strike the strings, make whistling sounds and scrapes. Brushes are also great for making sound textures.
The sound varies greatly according to the material and stiffness of the brush. Wire brushes sound rather loud and metallic while paint bushes sound soft and delicate.
Paint brush tremolo.
Wire brush tremolo.