SliderPanel (for sliders removed from OptionsPanel) added, Volume slider functional. Functionality has been started for playing "items" (songs, chords, scales); "Fur Elise" will now play - other files simply need to be added to project and handled to play. KeyBoardPanel also now generates synthesizer sounds rather than relying on .wav files; this will make it easier to switch sound banks, and makes the notes a lot nicer.