Assertion: chord | /r/CapableOf | take on tonic
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Source sentences:
text: There is only one chord, a perfect chord; it alone is consonant because it alone generates a feeling of repose and balance; this chord has two different forms, major and minor, depending whether the chord is composed of a minor third over a major third, or a major third over a minor; this chord is able to take on three different tonal functions, tonic, dominant, or subdominant.