2 questions - ties and midi, ties notes in a separate coda

[Shelagh]

I have two questions.
1) I made a beautiful printout of a song and the midi output was 
successful, but the tied notes did not 'tie' in the midi song. Is this 
normal? or am I missing something. The ties over the bar lines seemed to 
work but the tied notes in the middle of the measure separated. I'm using 
Lilypond 2.2.0.
2) In another song the coda was separated from the main score. The 
structure of the song is like this

music repeat x2 music skip to coda

The problem is that the note that is on the barline which skips is tied so 
the coda begins with the end of a tied note. I played around with \skips 
but nothing looked promising. Does anyone have any suggestions?

Shelagh