TextScript.outside-staff-padding and text's baseline

[Urs Liska]

Hi,

I'm trying to place a number of TextScript elements on a common baseline 
(similar to how lyrics are typeset).

Using outside-staff-padding on first sight seems to work but it doesn't 
really do the job.

\version "2.19.82"

{
  \override TextScript.outside-staff-padding = 2
  g' _"g" ^"q"
  g' _"b" ^"b"
}

Here you can see that the padding is calculated against the TextScript's 
*extent* - which spoils the vertica alignment when lower or upper 
extenders are involved.

Is there a way to force text elements to a common *baseline* (as long as 
collision avoidance doesn't force them farther away from the staff?

Urs

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