0.91 2013-05-07 Output json in canonical form so the tests can succeed. 0.90 2013-05-06 Initial CPAN release. Documenting... Test for new, simplified song API. Add json sub. Example using abbreviated chords API. Use Opus exporters. Add chord subroutines for much easier access. Small improvements and fixes. Add method for editMode. Add wrapup method to determine the desired value of editMode and set it.