Chord Positioning

[Bill Baird]

Chords may positioned over notes / rests / lyric syllables (absence of notes).

Chords may also be positioned over beats (no note / rest / syllable).  In this 
case, for instance, a whole note may be shown in a 4/4 measure and a chord 
appears over the second beat of that same measure.

In each positioning case, the chord symbol and/or diagram may be 
left/center/right justified over the positioning entity.

I could not find tests that verify correct chord positioning.

Thank you.