First I did cosmetic changes with the if-statements to
make the "then" keyword inline with the test operator.
Second, I added functionality for volume adjustment.
You can now make on the fly playlists by using the add
function to simply append songs to the playorder. Accordingly,
next and back will allow you to navigate over the playorder. Instead
of shooting all output of mplayer to /dev/null I output to a text file
which I will read with tail when it is useful... like getting info about
a song.
added a simple help option that needs to be expanded