A later example of this can be found in the slow movement of Bach's Italian Concerto where a B natural in an ascending scale is played against a Bb chord (part of a descending harmonic sequence). For example, in the key of D an ascending phrase B natural, C#, D may be used in one voice and D, C natural, Bb in another. Things are more complicated in pre-classical harmony as sometimes different ascending and descending versions of the mode were used simultaneously, often producing clashes. Although beautiful when used by the really good composers, unfortunately this sometimes became an affectation to create an instant Elizabethan sound. In 20th century English music, when modal music became more studied, often a minor dominant chord was used in a major scale, e.g.
This produces a sharpened 7th - but not a flattened 6th - so that the dominant chord is major, not minor - which is more suited to traditional classical music and produces a perfect cadence.Ī dominant chord that is minor produces a modal sound. Minor scale chords are built using the harmonic minor scale.
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