fixed the steel drums enum naming problem
Fix last note of SequencePlayer.main test scale

The last note was previously an 'A' instead of the desired 'C'. This commit
fixes issue #1.
Fixed value for OCTAVE in Pitch to 12 (from 16)
I added a throws MidiUnavailableException and an InvalidMidiDataException to SequencePlayer.main so that it can compile
new commit
Added 'second' getter method
Concat.checkRep implemented
fixed bugs 7 & 8
fixed issue 9
concat.duration returns sum instead of first.duration
fixed issue 4
Pushing to fork
Merge pull request #13 from vkee/master

Fixed Issue #12
Merge pull request #14 from fcolon/master

Fixed value for OCTAVE in Pitch to 12 (from 16)
Merge pull request #15 from alexkonradi/fix-sequence-player-wrong-end-note

Fix last note of SequencePlayer.main test scale
Merge pull request #16 from becha2/master

fixed issue 5
Merge pull request #18 from ezennag/master

new commit
Merge pull request #19 from TheBrownJacket/master

fixed issue 9
Merge pull request #20 from zboh12/master

fixed issue 4
Merge pull request #17 from hege0110/master

fixed bugs 7 & 8