Assertion: cello's instrument | /r/HasProperty | melodic
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Source sentences:
text: His challenge, since the cello is essentially a melodic instrument (compared to the obvious harmonic functions of a keyboard instrument, on which one can easily play 6, 8, or 10 note chords), is to ingeniously and cleverly integrate multiple voices and clear harmonic structure without the benefit of straightforward, keyboard-type chordal playing.