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)