Assertion: harmonica's reed | /r/CapableOf | cross their slots
Facets:
Source sentences:
text: Normal blow notes are caused by the upper reeds crossing their slots when the air stream enters through the holes in the comb, flows over the inner reeds, and exits through the slots.
text: Normal draw notes work similarly but are caused by the lower reeds crossing their slots when the air stream flows over the outer reeds, enters through the slots, and exits through the holes in the comb.