83.103Mini-composition exercise

Write a 32-bar reharmonization étude generated primarily from voice leading.

Requirements:

• one bass line C-C♯-D producing a passing-diminished effect
• one bass line D-D♭-C producing a chromatic/tritone-sub-type approach
• one inner line A-A♭-G producing borrowed iv or equivalent color
• one top line E-E♭-D generating changing extensions
• one sustained melody note over at least four bass changes
• one passage where outer voices are fixed but middle harmony changes
• one cadence designed backward from tonic
• one parallel-semitone approach chord
• one functional dominant cadence for contrast
• one bass note functioning as inversion rather than root
• one passing bass note that receives no new chord symbol
• one deceptive bass arrival that delays tonic
• final four bars must simplify to melody + bass + one inner line

The study should be explainable almost entirely as lines, even if the resulting chord symbols look sophisticated.