Assertion: diatonic harmonica | /r/CapableOf | cover 3 octaves
Facets:
Source sentences:
text: A diatonic harmonica covers 3 octaves (37 notes between 1 blow to 10 blow); however, there are only 10 holes on a diatonic harmonica, which offers a total of just 20 different notes (and two of those are identical: 2 draw and 3 blow).