Adding parenthesis around slurs or hairpins or whatever else

[Gianluca D.]

Hi everybody!

I'm trying to copy with Lilypond a nice sheet of music showing many editorial 
parenthesis around slurs, ties and hairpins.

In the attachments, you can see two examples of what I'm talking about.

Is there anyone who knows a general way to reproduce these expressions, 
hopefully without dismantling Lilypond bit by bit? :P

I've already tried searching the archive and the regression-tests and 
tips-and-tricks, but with no results, except for that dirty trick to make 
dynamics surrounded by parenthesis ( which is a very very very dirty trick 
because such dynamics are actually markups and so they will never align 
properly with normal dynamics, but with changing all the default dynamic 
padding properties etc etc... )

Thank you to everyone.

Gianluca D'Orazio

tie.jpg
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hairpin.jpg
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pgpxH8mzNDGTu.pgp
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