Re: phrasing slur continued through a repeat?

[Robin Bannister]

Well, \repeatTie doesn't take you very far into the ensuing phrase. 
And it doesn't swoop properly.

A fairly easy way in this case is to add a hidden grace note:
 { \hideNotes \grace b16\( \unHideNotes c8 g8 c8 \) | }

And you can use the grace pitch to adjust the starting height. 
This is usually necessary if you want to make the trailing fragment 
appear any way related to the (both-times) leading section. 

Cheers,
Robin