Let TabStaff print the topmost string at bottom

In tablatures, the first string is usually printed topmost. If you want to have it at the bottom, set the stringOneTopmost context property to #f. For a context-wide setting this could be done in the \layout block as well.

\version "2.24"

%\layout {
%  \context {
%    \Score
%    stringOneTopmost = ##f
%  }
%  \context {
%    \TabStaff
%    tablatureFormat = #fret-letter-tablature-format 
%  }
%}

m = {
  \cadenzaOn
  e, b, e gis! b e'
  \bar "||"
}

<<
  \new Staff {
    \clef "G_8"
    <>_"default" \m
    <>_"italian (historic)"\m
  }
  \new TabStaff 
  {
    \m
    \set Score.stringOneTopmost = ##f 
    \set TabStaff.tablatureFormat = #fret-letter-tablature-format 
    \m
  }
>>