Bow stroke » Less common bow strokes » Circular -- see measure 33:
Like spazzolato but incorporating a sideways pull (like a normal bowing) giving a circular movement to the bow and producing small accents, a little like a helicopter. (Knox)
Bow stroke » Less common bow strokes » Circular -- see measure 68:
Helicopter effect: Combination of spazzolato and circular bowing, at the heel of the bow. The bow could be held almost in the fist of the hand, to get extra pressure and weight (and lots of bow noise!). (Knox)
