This program tunes the guitar to open D tuning, and
shows how to play the chords Amaj7 and Cmaj7.  Then
it defines a new tuning called "rain_song", and tunes
the guitar to that.  Finally, it shows how to play the
chord Dm6.


BEGIN

  tuning open_D;  

  chord Amaj7;

  wait 20;

  chord Cmaj;

  wait 20;

  define rain_song DGCGCD;

  tuning rain_song;

  chord Dm6;

END;