Assertion: piano's octave | /r/HasAspect | heptatonic scale
Facets:
Source sentences:
text: Note intervals can vary, but all the octaves are divided into a heptatonic scale, many being diatonic or at least nearly diatonic
text: Note intervals can vary, but all the octaves are divided into a heptatonic scale, many being diatonic or at least nearly diatonic