This is Perl module GD::Tab::Guitar.

INSTALLATION

GD::Tab::Guitar installation is straightforward. If your CPAN shell is set up,
you should just be able to do

    % cpan GD::Tab::Guitar

Download it, unpack it, then build it as per the usual:

    % perl Makefile.PL
    % make && make test

Then install it:

    % make install

DOCUMENTATION

GD::Tab::Guitar documentation is available as in POD. So you can do:

    % perldoc GD::Tab::Guitar

to read the documentation online with your favorite pager.

Koichi Taniguchi (nipotan)