Time Signatures 4/4 to 5/4 and Chord Mode

[lwhitby]

Hello:
I just discovered something interesting - maybe not a bug but perhaps something
worth noting.  I hope this is not redundant.  When entering chords (\chordmode)
above the melody in 4/4, a chord lasting an entire bar can be given a value of 1
(say c1:7 where the 1 indicates the length of the bar, right?).  If the time
changes from 4/4 to 5/4 and a chord is to last an entire bar, it must be entered
twice with two time values that give it the length of the bar:  (c1:7 and c4:7).
 Otherwise all susequent chord values and their positions in their respective
bars will be corrupted.  When the time returns back to 4/4 all chord time
intervals return to normal. 

Is there something that I am missing?

Also, a question.  Jazz pieces are sometimes noted as AABA or something of that
nature to inticate sections of the pieces and the sequential nature of the
piece.  Is there a way to label sections?  Can the rehearal marks be used for
this?  Is there another way?

Regards,
Lawrence Whitby