[ISSUE] Don't center letter fret labels but align them at their baseline

[David Kastrup]

Type: Enhancement
Status: Started
Patch: New
Owner: address@hidden
Rietveld issue: 262470043 (https://codereview.appspot.com/262470043)
Summary:
Don't center letter fret labels but align them at their baseline

Not sure this change of behavior is really wanted or the chosen value
will be useful/appropriate.  This particular change is in
scm/translation-functions.scm.  The issue contains another commit that
is independently useful as it stops the redundantly hardwired behavior
established in tab-note-head::print :

Make TabNoteHead.X-offset operative

It has been effectively overridden in tab-note-head::print which
masked the missing default of self-alignment-X.

-- 
David Kastrup