Stop Tablature from moving up an octave

[Bob Stricklin]

I am new to Lilypond and can not get Tablature for guitar to work like I think 
it should.

The documentation indicates Lilypond will select the lowest fret and open 
strings.

When I run my example below the tablature selects fret position 12 and not zero 
for three of the note groups.
I want it to select zero for all strings played. Is there an easy solution to 
this issue?

Its odd that the code works properly for one of the three note groupings.

This is to represent finger picking a bass note and two other notes with 
fingers.

My Simplified code input using Frescobaldi on Ubuntu 18.04.

\version "2.18.2"

song = {
    <e,  g'\3  b\2>  <a\5 g'\3 b\2>  <d\4 g\3 b\2> <a\5 g'\3 b\2>
}

  \score {
  <<
%   \override StringNumber #'transparent = ##t
   \relative c'
 
     {\song }
   }
 
   \new TabStaff 
   
    {\song}
>>
}

Output numbers only:

                0               0               0               0
                12              12              0               12

                0               0               0               0

I wish there was an ability to:

Select string and fret manually. Something like \3-0.

It would also be helpful to have a command like
\set TabStaff.maximumFret=#5       This would force the automatic code to 
remain in the first few frets.