MUSC 232 Chapter Notes - Chapter 26: Diminished Triad, False Relation, Secondary Chords
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For this reason, mixture chords are sometimes called "borrowed chords. " The most common mixture chords in major keys, aside from the minor tonic (i), are those that include b6: iio6, iio6/5, iv, bvi, and viio7: to label a mixture chord: Adjust the quality of the roman numeral. If necessary, add a o or o/ to a lowercase roman numeral for a diminished triad or seventh chord. If the root has been lowered, add a b before the roman number. The spelling of function of mixture chords: mixture chords have the same harmonic function and follow the same common-practice voice-leading guidelines as the diatonic chords they replace. Double the root in a root-position chord. Double any stable chord member in a first-inversion chord (often the soprano or bass) Double the bass in a second-inversion chord. Where possible, keep the chromatic semitone (half-step motion in any voice.
