Arco-Serrated Objects Other Than The Bow
Various materials can be used to generate an Arco type. Objects that are serrated will produce a much harsher sound. The sound quality depending on the material/object used.
Some materials/objects that can be used include:
Dynamic Range: pp-ff
Special Notes: Velocity is limited in some cases where both hands have to be used. Care must be taken to not damage the strings.
(Audio example: notched stick & hair brush)