Vertical text alignment in VoltaBracket - Bug?

[Risto Vääräniemi]

Dear All,

The volta bracket text seems to be aligned vertically based on the
topmost part of the text. In the attached image, the first bracket has
just "short" characters and the other some "taller" characters.
Therefore, their base lines are not aligned. Please, see the attached
image.

Is there a way to move just the text to make the text vertically
aligned? The Score.VoltaBracket #'extra-offset moves the whole
bracket.

Is this a bug? Should I send it to the bug mailing list?

-Risto

volta_text_alignment.png
Description: PNG image