| Class Summary | 
| Chord | A class to represent a collection of notes to be played
    on one instrument at the same time. | 
| Melody | Represents a collection of chords that can be played in sequence. | 
| MusicBox | Represents/initializes the MIDI synthesizer and manages the
    channels/instruments in the MIDI program. | 
| Note | Represents a single note which includes a pitch and duration. | 
| Tune | Represents one a Chord to be played on the given channel. | 
| TuneCollection | A collection of Notes/Tunes to be played on MIDI instruments, together
    with the MusicBoxon which the Notes
    will be played. |