Thursday, 8 March 2012

Diminished Perspectives 4 Piano score, Symmetrical Dim

This is a piano score of the previous lead sheet example (found in Diminished Perspectives 3) of Diminished 7th function and voicing and voice leading.

The diminished chords with extensions as "slash/chords are derived mostly with the symmetrical diminished whole/half scale in mind. They are primarily auxiliary in function. The lower "denominator" of these slash chords are usually a diminished chord on the root of the next change except where there are voicing considerations and inversions of the auxiliary diminished are used. The "numerator" part of the slash chord will be a chord or chord voicing which will carry the melody and are also derived from the whole/half scale. For example in the 4th full bar on beat 4 (Emi7/Ddim7), both of the chords found in this slash/chord are derived from the same whole half symmetrical scale. The D diminished chord in this case, is an inversion of Ab diminished 7 which is on the same root as the chord that follows, i.e. Abdim7—Abmi7. 

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