Wrote abc files for pieces one, two, and three.
Merge branch 'master' into warmuppieces
Merge pull request #2 from Jdhaimson/warmuppieces

Warmuppieces
Spec out ADT
Implement Note, Voice and Lyric.  Write VERY basic tests
Merge branch 'master' into implement_ADT
Handle alternate endings in measures
Added tests
Revised hashCode tests
Added a test for errors in voiceTest
Implement Key and Basic Measure Functionality
Merge branch 'implement_ADT' of github.com:Jdhaimson/abcmusicplayer into implement_ADT
Fix syntax of minor keys
Added tests to Key
Fix key methods and add basic song and measure implementations
Merge branch 'implement_ADT' of github.com:Jdhaimson/abcmusicplayer into implement_ADT
Updates to tests
Restructure ADT to include musical elements and chords
Merge branch 'implement_ADT' of github.com:Jdhaimson/abcmusicplayer into implement_ADT
Add tests for Chords, Rests, and Tuplets