Re: adjusting a system's NonMusicalPaperColumn Y-offset by a relative distance

[Mark Polesky]

Kieren MacMillan wrote:
> For 'Y-offset adjustments, I'd like to be able to give a
> relative adjustment (e.g., -10 means raise 10 spaces from where
> Lilypond would *normally* put it). Is there a way I can get a
> callback function (giving the "current" position) in order to
> accomplish this?

Kieren,

I'd like to help but I can't get your function to work. I get:

warning: type check for `line-break-system-details' failed;
value `(10 . 10)' must be of type `list'

Can you include a working example?

Thanks.
- Mark