Dominant: which dominates or impose its criteria. character of a chord originated on another major mode; a seventh - is a chord of mode which joins the seventh note of the same tonic height but in minor mode: Do - Mi - Sol, in unison is the chord of C in major mode... If flat is the seventh note of OJ in minor mode = Do - Mi - Sol - if flat = Do7 Domimante. When in this combination, my Sun lost half-tone seventh chord is decreased: Do - Mib - Solb - Síb = OJ tiny.
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